Calculate the derivative of the function. Then find the value of the derivative as specified.
t = -4 if s = t2 - t
A. 
= 2 - t; 
t = -4
= 6
B. 
= 2t - 1; 
t = -4
= -9
C. 
= 2t + 1; 
t = -4
= -7
D. 
= t - 1; 
t = -4
= -5
Answer: B
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Given f(x) and g(x), find the indicated composition and evaluate.f(x) = 
; g(x) = 2x2Find (g ? f)(2).
A. 
B. 382
C. 38
D. 8
First rewrite the quadratic function in standard form by completing the square, then find any x-intercepts and any y-intercepts.f(x) = 2x2 + 28x + 90
A. x-intercepts: -5 and -9; y-intercept: 90 B. x-intercepts: 5 and -9; y-intercept: -28 C. x-intercepts: -5 and 9; y-intercept: 0 D. x-intercepts: 5 and 9; y-intercept: -90
The graphing calculator screens show a system and the point of intersection. Choose the screen which best represents the given system.x = 1y = 5
A. 
B. 
C. 
D. 
Simplify. Assume that variables in the radicand are greater than or equal to 0.
A. 5
B. 
C. 
D. none of these