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All Textbook Solutions for Precalculus
In Problems 77-82, for the given functions fandg , (a) Graph fandg on the same Cartesian plane. (b) Solve f( x )=g( x ) . (c) Use the result of part (b) to label the points of intersection of the graphs of fandg . Shade the region for which f( x )g( x ) , that is, the region below f and above g . f( x )= x 2 +7x6;g( x )= x 2 +x6Answer Problems 83 and 84 using the following: A quadratic function of the form f( x )=a x 2 +bx+c with b 2 4ac0 may also be written in the form f( x )=a(x r 1 )(x r 2 ) , where r 1 and r 2 are the x-intercepts of the graph of the quadratic function. (a) Find a quadratic function whose x-intercepts are 3 and 1 with a=1;a=2;a=2;a=5 . (b) How does the value of a affect the intercepts? (c) How does the value of a affect the axis of symmetry? (d) How does the value of a affect the vertex? (e) Compare the x-coordinate of the vertex with the midpoint of the x-intercepts . What might you conclude?Answer Problems 83 and 84 using the following: A quadratic function of the form f( x )=a x 2 +bx+c with b 2 4ac0 may also be written in the form f( x )=a(x r 1 )(x r 2 ) , where r 1 and r 2 are the x-intercepts of the graph of the quadratic function. (a) Find a quadratic function whose x-intercepts are 5 and 3 with a=1;a=2;a=2;a=5 . (b) How does the value of a affect the intercepts? (c) How does the value of a affect the axis of symmetry? (d) How does the value of a affect the vertex? (e) Compare the x-coordinate of the vertex with the midpoint of the x-intercepts . What might you conclude?Suppose that f(x)= x 2 +4x21 . (a) What is the vertex of f ? (b) What are the x-intercepts of the graph of f ? (c) Solve f(x)=21 for x . What points are on the graph of f ? (d) Use the information obtained in parts (a)(c) to graph f(x)= x 2 +4x21 .Suppose that f( x )= x 2 +2x8 . (a) What is the vertex of f ? (b) What are the x-intercepts of the graph of f ? (c) Solve f( x )=8 for x . What points are on the graph of f ? (d) Use the information obtained in parts (a)(c) to graph f( x )= x 2 +2x8 .Analyzing the Motion of a Projectile A projectile is fired from a cliff feet above the water at an inclination of to the horizontal, with a muzzle velocity of feet per second. The height of the projectile above the water is modeled by
Where is the horizontal distance of the projectile from the face of the cliff.
At what horizontal distance from the face of the cliff is the height of the projectile a maximum?
Find the maximum height of the projectile.
At what horizontal distance from the face of the cliff will the projectile strike the water?
Graph the function ,.
Use a graphing utility to verify the solutions found in parts and.
When the height of the projectile is feet above the water, how far is it from the cliff ?
Analyzing the Motion of a Projectile A projectile is fired at an inclination ofto the horizontal, with a muzzle velocity offeet per second. The heightof the projectile is modeled by
Whereis the horizontal distance of the projectile from the firing point.
At what horizontal distance from the firing point is the height of the projectile
Find the maximum height of the projectile.
At what horizontal distance from the firing point will the projectile strike the ground?
Graph the function.
Use a graphing utility to verify the results obtained in parts and.
When the height of the projectile is feet above the ground, how far has it travelled horizontally?
Maximizing Revenue Suppose that the manufacturer of a gas clothes dryer has found that, when the unit price is p dollars, the revenue R (in dollars) is R( p )=4 p 2 +4000p What unit price should be established for the dryer to maximize revenue? What is the maximum revenue?Maximizing Revenue A lawn mower manufacturer has found that the revenue, in dollars, from sales of zero-turn mowers is a function of the unit price,in dollars, that it charges. If the revenueis
What unit priceshould be charged to maximize revenue? What is the maximum revenue?
Minimizing Marginal Cost The marginal cost of a product can be thought of as the cost of producing one additional unit of output. For example, if the marginal cost of producing the 50th product is 6.20 , it cost 6.20 to increase production from 49 to 50 units of output. Suppose the marginal cost C (in dollars) to produce x thousand digital music players is given by the function C(x)= x 2 140x+7400 (a) How many players should be produced to minimize the marginal cost? (b) What is the minimum marginal cost?Minimizing Marginal Cost (See Problem 91.) The marginal cost C (in dollars) of manufacturing x cell phones (in thousands) is given by C( x )=5 x 2 200x+4000 (a) How many cell phones should be manufactured to minimize the marginal cost? (b) What is the minimum marginal cost?Business The monthly revenue R achieved by selling x wristwatches is figured to be R( x )=75x0.2 x 2 . The monthly cost C of selling x wristwatches is C( x )=32x+1750 . (a) How many wristwatches must the firm sell to maximize revenue? What is the maximum revenue? (b) Profit is given as P(x)=R( x )C( x ) . What is the profit function? (c) How many wristwatches must the firm sell to maximize profit? What is the maximum profit? (d) Provide a reasonable explanation as to why the answers found in parts (a)and(c) differ. Explain why a quadratic function is a reasonable model for revenue.Business The daily revenue R achieved by selling x boxes of candy is figured to be R( x )=9.5x0.04 x 2 . The daily cost C of selling x boxes of candy is C( x )=1.25x+250 . (a) How many boxes of candy must the firm sell to maximize revenue? What is the maximum revenue? (b) Profit is given as P(x)=R(x)C( x ) . What is the profit function? (c) How many boxes of candy must the firm sell to maximize profit? What is the maximum profit? (d) Provide a reasonable explanation as to why the answers found in parts (a)and(c) differ. Explain why a quadratic function is a reasonable model for revenue.Stopping Distance An accepted relationship between stopping distance d(in feet) and the speed v of a car(in mph), is d=1.1v+0.06v2 on dry level concrete How many feet will it take a car traveling 45 mph to stop on dry level concrete? If an accident occurs 200 feet ahead of you, what is the maximum speed you can be traveling to avoid being involved?82AYU83AYU84AYU85AYU86AYU87AYU88AYU89AYU90AYU91AYU92AYU1AYU2AYU3AYU4AYU5AYU6AYU7AYU8AYU9AYU10AYU11AYU12AYU13AYU14AYU15AYU16AYU17AYU18AYU19AYU20AYU21AYU22AYU23AYU24AYU25AYU26AYU27AYU28AYU29AYU30AYU31AYUSolve the inequality 3x27 .Write (2,7] using inequality notation.(a) f( x )0 (b) f( x )0(a) g( x )0 (b) g( x )0(a) g( x )f( x ) (b) f( x )g( x )(a) f( x )g( x ) (b) f( x )g( x )x 2 3x100x 2 +3x100x 2 4x0x 2 +8x0x 2 90x 2 10x 2 +x12x 2 +7x122 x 2 5x+36 x 2 6+5xx 2 x+10x 2 +2x+404 x 2 +96x25 x 2 +1640x6( x 2 1 )5x2( 2 x 2 3x )923AYU24AYUIn Problems 25-32, use the given functions f and g . (a) Solvef( x )=0 . (b) Solveg( x )=0 . (c) Solvef( x )=g( x ) . (d) Solvef( x )0 . (e) Solveg( x )0 . (f) Solvef( x )g( x ) . (g) Solvef( x )1 . f( x )= x 2 1 g( x )=3x+3In Problems 25-32, use the given functions f and g . (a) Solvef( x )=0 . (b) Solveg( x )=0 . (c) Solvef( x )=g( x ) . (d) Solvef( x )0 . (e) Solveg( x )0 . (f) Solvef( x )g( x ) . (g) Solvef( x )1 . f( x )= x 2 +3 g( x )=3x+3In Problems 25-32, use the given functions f and g . (a) Solvef( x )=0 . (b) Solveg( x )=0 . (c) Solvef( x )=g( x ) . (d) Solvef( x )0 . (e) Solveg( x )0 . (f) Solvef( x )g( x ) . (g) Solvef( x )1 . f( x )= x 2 +1 g( x )=4x+1In Problems 25-32, use the given functions f and g . (a) Solvef( x )=0 . (b) Solveg( x )=0 . (c) Solvef( x )=g( x ) . (d) Solvef( x )0 . (e) Solveg( x )0 . (f) Solvef( x )g( x ) . (g) Solvef( x )1 . f( x )= x 2 +4 g( x )=x2In Problems 25-32, use the given functions f and g . (a) Solvef( x )=0 . (b) Solveg( x )=0 . (c) Solvef( x )=g( x ) . (d) Solvef( x )0 . (e) Solveg( x )0 . (f) Solvef( x )g( x ) . (g) Solvef( x )1 . f( x )= x 2 4 g( x )= x 2 +4In Problems 25-32, use the given functions f and g . (a) Solvef( x )=0 . (b) Solveg( x )=0 . (c) Solvef( x )=g( x ) . (d) Solvef( x )0 . (e) Solveg( x )0 . (f) Solvef( x )g( x ) . (g) Solvef( x )1 . f( x )= x 2 2x+1 g( x )= x 2 +1In Problems 25-32, use the given functions f and g . (a) Solvef( x )=0 . (b) Solveg( x )=0 . (c) Solvef( x )=g( x ) . (d) Solvef( x )0 . (e) Solveg( x )0 . (f) Solvef( x )g( x ) . (g) Solvef( x )1 . f( x )= x 2 x2 g( x )= x 2 +x2In Problems 25-32, use the given functions f and g . (a) Solvef( x )=0 . (b) Solveg( x )=0 . (c) Solvef( x )=g( x ) . (d) Solvef( x )0 . (e) Solveg( x )0 . (f) Solvef( x )g( x ) . (g) Solvef( x )1 . f( x )= x 2 x+1 g( x )= x 2 +x+633AYU34AYU35AYU36AYU37AYU38AYU39AYU40AYU41AYU42AYU43AYUIn Problems 14, determine whether the function is a polynomial function, a rational function, or neither. For those that are polynomial functions, state the degree. For those that are not polynomial functions, tell why not. f(x)=4x53x2+5x2In Problems 14, determine whether the function is a polynomial function, a rational function, or neither. For those that are polynomial functions, state the degree. For those that are not polynomial functions, tell why not. f(x)=3x52x+1In Problems 14, determine whether the function is a polynomial function, a rational function, or neither. For those that are polynomial functions, state the degree. For those that are not polynomial functions, tell why not. f(x)=3x2+5x121In Problems 14, determine whether the function is a polynomial function, a rational function, or neither. For those that are polynomial functions, state the degree. For those that are not polynomial functions, tell why not. f(x)=3In Problems , graph each function using transformation(shifting, compressing, stretching, and reflecting).Show all the stages.
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6RE7RE8RE9RE10RE11RE12RE13RE14RE15RE16RE17RE18REIn Problems 1214, find the domain of each rational function. Find any horizontal, vertical, or oblique asymptotes. R(x)=x+2x29In Problems 1214, find the domain of each rational function. Find any horizontal, vertical, or oblique asymptotes. R(x)=x2+4x2In Problems , find the domain of each rational function. Find any horizontal, vertical, or oblique asymptotes.
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22REIn Problems 1520, graph each rational function following the seven steps on page 211. R(x)=2x6x24RE25RE26RE27RE28RE29RE30RE31RE32RE33RE34RE35RE36RE37RE38RE39RE40RE41RE42RE43RE44RE45RE46RE47RE48RE49RE50RE51RE52RE53RE54RE55RE56RE57RE58RE59RE60RE61RE62RE63RE64RE65RE66RE67RE68RE69RE70RE71RE72RE73RE74RE75RE76RE77RE78RE79RE80RE81RE82RE83RE84RE85RE86RE87RE88RE89RE90RE91REGraph f(x)=(x3)42 using transformations.For the polynomial function ,
Determine the maximum number of real zeros that the function may have.
List the potential rational zeros.
Determine the real zeros of . Factor over the reals.
Find the and intercepts of the graph of .
Determine whether the graph crosses or touches the x –axis at each x –intercept.
Find the power function that the graph of resembles for large value of .
Put all the information together to obtain the graph of .
Find the complex zeros of f(x)=x34x2+25x100. Solve in the complex number system.
In problems 5 and 6, find the domain of each function. Find any horizontal, vertical, or oblique asymptotes. g(x)=2x214x+24x2+6x40In problems and , find the domain of each function. Find any horizontal, vertical, or oblique asymptotes.
Graph the function in Problem 6. Label all intercepts, vertical asymptotes, horizontal asymptotes, and oblique asymptotes.In Problems 8 and 9, write a function that meets the given condition. Fourth degree polynomial with real coefficients; zeros;2,0,3+i Rational function; asymptotes: , ; domain :
Use the Intermediate Value Theorem to show that the function has at least one zero on the interval .
Solve:
Find the distance between the points and .
Solve the inequality x2x and graph the solution set.Solve the inequality x23x4 and graph the solution set.Find a linear function with slope 3 that contains the point (1,4). Graph the function. Find the equation of the line parallel to the line and consisting the point. Express your answer in slope-intercept form, and graph the function.
Graph the equation.
Does the relation {(3, 6), (1, 3), (2, 5), (3, 8)} represent a function? Why or why not?Solve the equation x36x2+8x=0.Solve the inequality 3x+25x1 and graph the solution set.10CRFor the equation y=x39x, determine the intercepts and test for symmetry.Find the equation of the line perpendicular to that contains the point.
Is the following the graph of a function? Why or why not?For the function f(x)=x2+5x2, find f(3) f(x) f(x) f(3x) f(x+h)f(x)h, h0Given the function f(x)=x+5x1 What is the domain of f? Is the point (2,6) on the graph of f? If x=3, what is f(x)? What point is on the graph of f? If f(x)=9, what is x? What point is on the graph of f? Is f a polynomial or a rational function?Graph the function f(x)=3x+7.Graph f(x)=2x24x+1 by determining whether its graph is concave up or concave down and by finding its vertex, axis of symmetry, y-intercept, and x-intercepts, if any. Find the average rate of change of from to . Use this result to find the equation of the secant line containing and .
In parts (a) to (f), use the following graph, Find the intercepts Based on the graph, tell whether the graph is symmetric with respect to the x- axis, the y- axis, and/or the origin. Based on the graph, tell whether the function is even, odd, or neither. List the interval on which f is decreasing. List the number, if any, at which f has a local maximum. What are the local maximum values? List the number, if any, at which f has a local minimum. What are the local minimum values?Determine algebraically whether the function f(x)=5xx29 is even, odd, or neither. For the function
Find the domain of .
Locate any intercepts.
Graph the function.
Based on the graph, find the range.
Graph the function f(x)=3(x+1)2+5 using transformations. Suppose that and .
Find and state its domain.
Find and its domain.
Demand Equation The price (in dollars) and the quantity sold of certain product obey the demand equation , .
Express the revenue as a function of .
What is the revenue if units are sold?
What quantity maximizes revenue? What is the maximum revenue?
What price should the company charge to maximize revenue?
The intercepts of the equation 9 x 2 +4y=36 are ______. (pp.18-19)Is the expression 4 x 3 3.6 x 2 2 a polynomial? If so, what is its degree? (pp. A22-A23)To graph y= x 2 4 , you would shift the graph of y= x 2 ______ a distance of ______ units. (pp. 106-114)4AYU5AYU6AYUThe graph of every polynomial function is both _______ and _______.If r is a real zero of even multiplicity of a polynomial function f , then the graph of f _______ (crosses/touches) the x-axis at r .The graphs of power functions of the form f(x)= x n , where n is an even integer, always contain the points ________, _______, and ______.If r is a solution to the equation f(x)=0 , name three additional statements that can be made about f and r assuming f is a polynomial function.The points at which a graph changes direction (from increasing to decreasing or decreasing to increasing) are called ________.The graph of the function f(x)=3x4x3+5x22x7 resembles the graph of for large values of |x|.If f( x )=2 x 5 + x 3 5 x 2 +7 , then lim x f( x )= _____ and lim x f( x )= _____.14AYUIn Problems 17-28, determine which functions are polynomial functions. For those that are, state the degree. For those that are not, tell why not. Write each polynomial in standard form. Then identify the leading term and the constant term. f(x)=4x+ x 3In Problems 17-28, determine which functions are polynomial functions. For those that are, state the degree. For those that are not, tell why not. Write each polynomial in standard form. Then identify the leading term and the constant term. f( x )=5 x 2 +4 x 4In Problems 1526, determine which functions are polynomial functions. For those that are, state the degree. For those that are not, state why not. Write each polynomial in standard form. Then identify the leading term and the constant term. g(x)=2+3x25In Problems 17-28, determine which functions are polynomial functions. For those that are, state the degree. For those that are not, tell why not. Write each polynomial in standard form. Then identify the leading term and the constant term. h(x)=3 1 2 xIn Problems 17-28, determine which functions are polynomial functions. For those that are, state the degree. For those that are not, tell why not. Write each polynomial in standard form. Then identify the leading term and the constant term. f(x)=1 1 xIn Problems 17-28, determine which functions are polynomial functions. For those that are, state the degree. For those that are not, tell why not. Write each polynomial in standard form. Then identify the leading term and the constant term. f(x)=x(x1)In Problems, determine which functions are polynomial functions. For those that are, state the degree. For those that are not, state why not. Write each polynomial in standard form. Then identify the leading term and the constant term.
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In Problems 17-28, determine which functions are polynomial functions. For those that are, state the degree. For those that are not, tell why not. Write each polynomial in standard form. Then identify the leading term and the constant term. h(x)= x ( x 1 )In Problems 17-28, determine which functions are polynomial functions. For those that are, state the degree. For those that are not, tell why not. Write each polynomial in standard form. Then identify the leading term and the constant term. F(x)=5 x 4 x 3 + 1 2In Problems 17-28, determine which functions are polynomial functions. For those that are, state the degree. For those that are not, tell why not. Write each polynomial in standard form. Then identify the leading term and the constant term. F(x)= x 2 5 x 3In Problems 17-28, determine which functions are polynomial functions. For those that are, state the degree. For those that are not, tell why not. Write each polynomial in standard form. Then identify the leading term and the constant term. G( x )=2 ( xl ) 2 ( x 2 +1)In Problems 17-28, determine which functions are polynomial functions. For those that are, state the degree. For those that are not, tell why not. Write each polynomial in standard form. Then identify the leading term and the constant term. G( x )=3 x 2 (x+2) 3In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )= ( x+1 ) 4In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )= ( x2 ) 5In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )= x 5 3In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )= x 4 +2In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )= 1 2 x 4In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )=3 x 5In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )= x 5In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )= x 4In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )= ( x1 ) 5 +2In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )= ( x+2 ) 4 3In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )=2 ( x+1 ) 4 +1In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )= 1 2 ( x1 ) 5 2In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )=4 ( x2 ) 5In Problems 29-42, use transformations of the graph of y= x 4 or y= x 5 to graph each function. f( x )=3 ( x+2 ) 4In Problems 43-50, form a polynomial function whose real zeros and degree are given. Answers will vary depending on the choice of a leading coefficient. Zeros: 1 , 1, 3; degree 3.In Problems 43-50, form a polynomial function whose real zeros and degree are given. Answers will vary depending on the choice of a leading coefficient. Zeros: 2 , 2, 3; degree 3.In Problems 4148, find a polynomial function whose real zeros and degree are given. Answers will vary depending on the choice of the leading coefficients. Zeros: 5,0,6; degree 3In Problems 43-50, form a polynomial function whose real zeros and degree are given. Answers will vary depending on the choice of a leading coefficient. Zeros: 4 , 0, 2; degree 3.In Problems 4148, find a polynomial function whose real zeros and degree are given. Answers will vary depending on the choice of the leading coefficients. Zeros: 5,2,3,5; degree 4In Problems 43-50, form a polynomial function whose real zeros and degree are given. Answers will vary depending on the choice of a leading coefficient. Zeros: 3 , 1 , 2, 5; degree 4.In Problems 43-50, form a polynomial function whose real zeros and degree are given. Answers will vary depending on the choice of a leading coefficient. Zeros: 1 , multiplicity 1; 3, multiplicity 2; degree 3.In Problems 43-50, form a polynomial function whose real zeros and degree are given. Answers will vary depending on the choice of a leading coefficient. Zeros: 2 , multiplicity 2; 4, multiplicity 1; degree 3.In Problems 57-68, for each polynomial function: (a) List each real zero and its multiplicity. (b) Determine whether the graph crosses or touches the x-axis at each x-intercept (c) Determine the maximum number of turning points on the graph. (d) Determine the end behavior; that is, find the power function that the graph of f resembles for large values of | x | . f(x)=3( x7 ) ( x+3 ) 2In Problems 57-68, for each polynomial function: (a) List each real zero and its multiplicity. (b) Determine whether the graph crosses or touches the x-axis at each x-intercept (c) Determine the maximum number of turning points on the graph. (d) Determine the end behavior; that is, find the power function that the graph of f resembles for large values of | x | . f( x )=4( x+4 ) ( x+3 ) 3In Problems 5970, for each polynomial function: List each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x-intercept. Determine the maximum number of turning points on the graph. Determine the end behaviour; that is, find the power function that the graph of f resembles for large values of |x|. f(x)=7(x2+4)2(x5)3In Problems 57-68, for each polynomial function: (a) List each real zero and its multiplicity. (b) Determine whether the graph crosses or touches the x-axis at each x-intercept (c) Determine the maximum number of turning points on the graph. (d) Determine the end behavior; that is, find the power function that the graph of f resembles for large values of | x | . f( x )=2( x3 ) ( x 2 +4 ) 3In Problems 57-68, for each polynomial function: (a) List each real zero and its multiplicity. (b) Determine whether the graph crosses or touches the x-axis at each x-intercept (c) Determine the maximum number of turning points on the graph. (d) Determine the end behavior; that is, find the power function that the graph of f resembles for large values of | x | . f( x )=2 ( x+ 1 2 ) 2 ( x+4 ) 3In Problems 57-68, for each polynomial function: (a) List each real zero and its multiplicity. (b) Determine whether the graph crosses or touches the x-axis at each x-intercept (c) Determine the maximum number of turning points on the graph. (d) Determine the end behavior; that is, find the power function that the graph of f resembles for large values of | x | . f( x )= ( x 1 3 ) 2 ( x1 ) 3In Problems 57-68, for each polynomial function: (a) List each real zero and its multiplicity. (b) Determine whether the graph crosses or touches the x-axis at each x-intercept (c) Determine the maximum number of turning points on the graph. (d) Determine the end behavior; that is, find the power function that the graph of f resembles for large values of | x | . f( x )= ( x5 ) 3 ( x+4 ) 2In Problems 57-68, for each polynomial function: (a) List each real zero and its multiplicity. (b) Determine whether the graph crosses or touches the x-axis at each x-intercept (c) Determine the maximum number of turning points on the graph. (d) Determine the end behavior; that is, find the power function that the graph of f resembles for large values of | x | . f( x )= ( x+ 3 ) 2 ( x2 ) 4In Problems 5970, for each polynomial function: List each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x-intercept. Determine the maximum number of turning points on the graph. Determine the end behaviour; that is, find the power function that the graph of f resembles for large values of |x|. f(x)=12(2x2+9)2(x2+7)In Problems 57-68, for each polynomial function: (a) List each real zero and its multiplicity. (b) Determine whether the graph crosses or touches the x-axis at each x-intercept (c) Determine the maximum number of turning points on the graph. (d) Determine the end behavior; that is, find the power function that the graph of f resembles for large values of | x | . f( x )=2 ( x 2 +3 ) 3In Problems 57-68, for each polynomial function: (a) List each real zero and its multiplicity. (b) Determine whether the graph crosses or touches the x-axis at each x-intercept (c) Determine the maximum number of turning points on the graph. (d) Determine the end behavior; that is, find the power function that the graph of f resembles for large values of | x | . f( x )=2 x 2 ( x 2 2 )In Problems 57-68, for each polynomial function: (a) List each real zero and its multiplicity. (b) Determine whether the graph crosses or touches the x-axis at each x-intercept (c) Determine the maximum number of turning points on the graph. (d) Determine the end behavior; that is, find the power function that the graph of f resembles for large values of | x | . f( x )=4x( x 2 3 )In Problems 69-72, identify which of the graphs could be the graph of a polynomial function. For those that could, list the real zeros and state the least degree the polynomial can have. For those that could not, say why not.In Problems 69-72, identify which of the graphs could be the graph of a polynomial function. For those that could, list the real zeros and state the least degree the polynomial can have. For those that could not, say why not.In Problems 69-72, identify which of the graphs could be the graph of a polynomial function. For those that could, list the real zeros and state the least degree the polynomial can have. For those that could not, say why not.In Problems 69-72, identify which of the graphs could be the graph of a polynomial function. For those that could, list the real zeros and state the least degree the polynomial can have. For those that could not, say why not.In Problems 73-76, construct a polynomial function that might have the given graph. (More than one answer may be possible.)In Problems 73-76, construct a polynomial function that might have the given graph. (More than one answer may be possible.)In Problems 73-76, construct a polynomial function that might have the given graph. (More than one answer may be possible.)In Problems 73-76, construct a polynomial function that might have the given graph. (More than one answer may be possible.)69AYU70AYU71AYU72AYU73AYU74AYU75AYU