MATHEMATICS · Multi-part · AP · Calculus AB · Analytical Applications of Differentiation · Analytical Applications of Differentiation
Problem
The graph of g′, the derivative of a differentiable function g, is composed of straight‐line segments with the following characteristics.
• For x<0, g′(x)=0.
• On 0≤x≤2, g′(x)=2.
• On 2≤x≤5, g′(x) decreases linearly from 2 at x=2 to −4 at x=5.
• For x≥5, g′(x)=−4.
Assume g(0)=3.
(a) Compute g(2), g(5), and g(7). Show all steps in your reasoning.
(b) On the interval 0≤x≤7, determine the x–value at which g attains its absolute maximum. Justify your answer using information from the graph of g′.