Graph the parabola and give its vertex, axis, x-intercepts, and y-intercepts.f(x) = -x2 + 8x
A. vertex (4, -16); axis is x = 4;
no x-intercepts; y-intercept is -32
B. vertex (-4, 16); axis is x = -4;
x-intercepts are 0 and - 8; y-intercept is 0
C. vertex (-4, -16); axis is x = -4;
no x-intercepts; y-intercept is -32
D. vertex (4, 16); axis is x = 4;
x-intercepts are 0 and 8; y-intercept is 0
Answer: D
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Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = tan
A. y = tan u; u = ? - 
; 
= sec2
B. y = tan u; u = ? - 
; 
= 
sec
tan
C. y = tan u; u = ? - 
; 
= 
sec2
D. y = tan u; u = ? - 
; 
= sec2
Write as a percent. 0.283
A. 28.3% B. 283% C. 0.283% D. 0.0283%
Find the differential of the function.
?
What will be an ideal response?
Solve.The time to drive a fixed distance varies inversely as the rate. If the rate increases, what happens to the time?
A. There is not enough information. B. It increases. C. It stays the same. D. It decreases.