Find the inverse of the function.f(x) = 
, x ? -7
A. f-1(x) = x2 - 7, x ? 0
B. f-1(x) = x2 - 49, x ? 0
C. f-1(x) = -x2 + 7, x ? 0
D. Not a one-to-one function
Answer: A
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Identify the terms of the polynomial expression.6x5 - 4x4 + 4x + 10
A. 6x5, 4x4, 4x, 10 B. 6, -4, 4, 10 C. -6x5, -4x4, -4x, -10 D. 6x5, -4x4, 4x, 10
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions.log2
A. -log2 x
B. 
C. 2
D. 1 - log2 x
Multiply to find the exact answer. Express the answer as a whole or mixed number when possible and simplify.4
? 4 ? 
A. 16
B. 8
C. 16
D. 6
Solve the problem.The distance it takes to stop a car varies directly as as the square of the speed of the car. If it takes 112 feet for a car traveling at 40 miles per hour to stop, what distance is required for a speed of 
per hour?
A. 223.26 ft B. 260.81 ft C. 272.77 ft D. 260.47 ft