Evaluate the indicated function for 
and 
.
( fg )(1)
A. 15
B. -35
C. -23
D. -25
E. -33
Answer: D
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Solve.The equation of a line is y = - 7x. What is the slope of a line perpendicular to it?
A. 0
B. 7
C. - 7
D. 
Find f-1(x) for the following one-to-one function f.f = {(-7, 3), (-1, 1), (6, 2), (8, 4)}
A. f-1 = {(-3, 7), (-1, -1), (2, -6), (4, -8)} B. f-1 = {(-3, 7), (-1, 1), (-2, -6), (-4, -8)} C. f-1 = {(7, -3), (1, -1), (-6, -2), (-8, -4)} D. f-1 = {(3, -7), (1, -1), (2, 6), (4, 8)}
Solve the problem.A person standing close to the edge on top of a 160-foot building throws a baseball vertically upward. The quadratic function 
models the ball's height above the ground, s(t), in feet, t seconds after it was thrown. After how many seconds does the ball reach its maximum height? Round to the nearest tenth of a second if necessary.
A. 2 sec B. 5.7 sec C. 1.5 sec D. 224 sec
Name the quadrant or axis in which the point lies.(4, -14)
A. quadrant I B. quadrant II C. quadrant III D. quadrant IV