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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.

MATH 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…

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 2019

2. Find the instantaneous rate of change for each function f(x)=2x²-x+3 at x=0..

4x-3 2. Determine the interval over which the function is continuous. x+4

1. 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=4