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Chapter 9 Solutions
Discrete Mathematics And Its Applications
- 4. The revenue (in thousands of dollars) from producing x units of an item is R(x)=8x-0.015 x². a) Find the average rate of change of revenue when the production is increased from 1000 to 1001 units.arrow_forwardMATH 122 WORKSHEET 3 February 5, 2025 . Solve the following problems on a separate sheet. Justify your answers to earn full credit. 1. Let f(x) = x² - 2x + 1. (a) Find the slope of the graph of y = f (x) at the point P = (0,1) by directly evaluating the limit: f'(0) = lim ( f(Ax) - f(0) Ax Ax→0 (b) Find the equation of the tangent line 1 to the graph of ƒ at P. What are the x and y intercepts of 1 ? (c) Find the equation of the line, n, through P that is perpendicular to the tangent line l. (Line n is called the normal line to the graph of f at P.) (d) Sketch a careful graph that displays: the graph of y = f (x), its vertex point, its tangent and normal lines at point P, and the x and y intercepts of these lines. Bonus: Find the coordinates of the second point, Q, (QP), at which the normal line n intersects the graph of f. 2. A rock is thrown vertically upward with an initial velocity of 20 m/s from the edge of a bridge that is 25 meters above a river bed. Based on Newton's Laws of…arrow_forward1 If ye y = sin x, find dy/dx and dy/dx² at (0, 0).arrow_forward
- 3. Use the graph for problem #35, p175 to answer the questions. The average price (in cents) per gallon of unleaded gasoline in the United States for the years 2010 to 2019 is shown in this chart. Find the average rate of change per year in the average price per gallon for each time period. Source: U.S. Energy Information Administration. a) 2010 to 2013 b) 2012 to 2018 c) 2014 to 2019arrow_forward4. Researchers at Iowa State University and the University of Arkansas have developed a piecewise function that can be used to estimate the body weight (in grams) of a male broiler during the first 56 days of life according to W(t)=48+3.64t+0.6363²+0.00963 t³ if 1St≤28, -1004+65.8t if 28arrow_forward3. Given the function h(x)=(x²+x-12 if x≤1 3-x if x>1' a) Graph the function h(x). Make the graph big enough to be easily read using the space below. Be sure to label all important aspects of the graph. b) Find all values of x where the function is discontinuous. c) Find the limit from the left and from the right at any values of x found in part b.arrow_forward2. Find the instantaneous rate of change for each function f(x)=2x²-x+3 at x=0..arrow_forward4x-3 2. Determine the interval over which the function is continuous. x+4arrow_forward1. Find the average rate of change for the following functions over the given intervals. a) f(x)=4x-2x²+3x between x=-1 and x=4 b) y lnx between x=1 and x=4arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageElements Of Modern AlgebraAlgebraISBN:9781285463230Author:Gilbert, Linda, JimmiePublisher:Cengage Learning,Elementary Linear Algebra (MindTap Course List)AlgebraISBN:9781305658004Author:Ron LarsonPublisher:Cengage Learning
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