
- (a) Plot the points P(0, 3), Q(3, 0), and R(6, 3) in the coordinate plane. Where must the point S be located so that PQRS is a square?
- (b) Find the area of PQRS.
(a)

To evaluate: The point S of a square PQRS and plot points in the coordinate plane.
Answer to Problem 15T
The point S is
Explanation of Solution
Given:
The coordinates of points of square PQRS is
Formula used:
The distance formula of two points
Where,
Calculation:
Let the coordinates of points be
Find the distance between the points
Substitute 3 for
The distance between two points
Substitute
Since all sides of square are equal in length,
Substitute
From the above expression the equation is,
Substitute
The equation from above expression is,
Subtract equation (2) from equation (1) to get the values of x,
Substitute 3 for x in equation (2) to get value of y.
These values of x- and y-coordinates gives the point S.
Since the point
Thus, the coordinates of point S is
Now the point
In point
The coordinate plane of points of square is shown below in Figure (1).
Figure (1)
From Figure (1), it is observed that the coordinates of the square PQRS are
(b)

To find: The area of square PQRS.
Answer to Problem 15T
The area of square PQRS is 18.
Explanation of Solution
Given:
The coordinates of points of square PQRS is
Calculation:
The formula of area of square is,
From part (a) the side of square PQRS is
Substitute
Thus, the area of square PQRS is 18.
Chapter 1 Solutions
Precalculus - A Custom Text for UNLV
- How does a fourier transform works?arrow_forwardDetermine the radius of convergence of a power series:12.6.5, 12.6.6, 12.6.7, 12.6.8Hint: Use Theorem12.5.1 and root test, ratio test, integral testarrow_forwardCan you answer this question and give step by step and why and how to get it. Can you write it (numerical method)arrow_forward
- Can you answer this question and give step by step and why and how to get it. Can you write it (numerical method)arrow_forwardThere are three options for investing $1150. The first earns 10% compounded annually, the second earns 10% compounded quarterly, and the third earns 10% compounded continuously. Find equations that model each investment growth and use a graphing utility to graph each model in the same viewing window over a 20-year period. Use the graph to determine which investment yields the highest return after 20 years. What are the differences in earnings among the three investment? STEP 1: The formula for compound interest is A = nt = P(1 + − − ) n², where n is the number of compoundings per year, t is the number of years, r is the interest rate, P is the principal, and A is the amount (balance) after t years. For continuous compounding, the formula reduces to A = Pert Find r and n for each model, and use these values to write A in terms of t for each case. Annual Model r=0.10 A = Y(t) = 1150 (1.10)* n = 1 Quarterly Model r = 0.10 n = 4 A = Q(t) = 1150(1.025) 4t Continuous Model r=0.10 A = C(t) =…arrow_forwardUse a graphing utility to find the point of intersection, if any, of the graphs of the functions. Round your result to three decimal places. (Enter NONE in any unused answer blanks.) y = 100e0.01x (x, y) = y = 11,250 ×arrow_forward
- 5. For the function y-x³-3x²-1, use derivatives to: (a) determine the intervals of increase and decrease. (b) determine the local (relative) maxima and minima. (e) determine the intervals of concavity. (d) determine the points of inflection. (e) sketch the graph with the above information indicated on the graph.arrow_forwardCan you solve this 2 question numerical methodarrow_forward1. Estimate the area under the graph of f(x)-25-x from x=0 to x=5 using 5 approximating rectangles Using: (A) right endpoints. (B) left endpoints.arrow_forward
- 9. Use fundamental theorem of calculus to find the derivative d a) *dt sin(x) b)(x)√1-2 dtarrow_forward3. Evaluate the definite integral: a) √66x²+8dx b) x dx c) f*(2e* - 2)dx d) √√9-x² e) (2-5x)dx f) cos(x)dx 8)²₁₂√4-x2 h) f7dx i) f² 6xdx j) ²₂(4x+3)dxarrow_forward2. Consider the integral √(2x+1)dx (a) Find the Riemann sum for this integral using right endpoints and n-4. (b) Find the Riemann sum for this same integral, using left endpoints and n=4arrow_forward
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning





