Find the coordinates of the vertex of the quadratic function.f(x) = 11(x - 4)2 + 9
A. (9, -4)
B. (4, 9)
C. (11, 4)
D. (-4, 9)
Answer: B
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Find the inverse using composition.f(x) = x2 - 6, x ? 0
A. f-1(x) = 
B. f-1(x) = - 
C. f-1(x) = - 
D. f-1(x) = x2 + 6
The graph of a function f is given. Use the graph to answer the question.For what numbers x is f(x) < 0?
A. (-12, ?) B. (-12, 14) C. (-?, -12) D. [-20, -12), (14, 20)
Solve the problem.Sarah and Shakina are running in a 4-lap, 1 mile race. Shakina is exactly one lap behind at the moment when Sarah completes her second lap. If Sarah averages 0.18 miles per minute for her last two laps, what must Shakina's average speed be in order for her to just pull even with Sarah at the finish line?
A. 0.12 mi/min B. 0.27 mi/min C. 0.24 mi/min D. 0.36 mi/min
Graph the sinusoidal function using key points.y = 3 sin(2x)
A. 
B. 
C. 
D. 