Find the derivative of f at x. That is, find f '(x).f(x) = -4x + 20; x = 4
A. -16
B. -4
C. 20
D. 80
Answer: B
Mathematics
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Write the exponential equation as an equation involving a logarithm.4-2 = 
A. log4-2 = 
B. log-2
= 4
C. log4
= -2
D. log1/164 = -2
Mathematics
Graph the function by first writing it in the form y = A sin(x + C). State the amplitude, period, and phase shift.y = 6 sin x - 6 cos x
A. Amplitude 6
, period 2?,
phase shift 
B. Amplitude 6, period 2?,
phase shift - 
C. Amplitude 6
, period 2?,
phase shift - 
D. Amplitude 6, period 2?,
phase shift 
Mathematics
Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 
B. 
C. 
D. 
Mathematics
Match the equation with its graph.y = x(x - 7)
A. 
B. 
C. 
D. 
Mathematics