Find the inverse of the function.f(x) = 
- 6
A. f-1(x) = x + 9
B. f-1(x) = 3x - 18
C. f-1(x) = 3x + 6
D. f-1(x) = 3x + 18
Answer: D
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Write the following as an algebraic expression in u, u > 0.tan 
A. 
B. 
C. u2
D. 
For the pair of functions, find the indicated sum, difference, product, or quotient.f(x) = 
, g(x) = 
Find (fg)(x).
A. (3x + 5)(9x - 16)
B. (
)(
)
C. (3x + 5)(3x - 4)
D. (3x - 4)(
)
Use values from the compound interest table to find the compound amount. Round to the nearest cent.
$15,000 at 6% compounded semiannually for 8 years
A. $23,907.72 B. $22,200.00 C. $24,070.65 D. $19,001.55
Solve the variation problem.The distance it takes to stop a car varies directly 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. 175 feet B. 175.34 feet C. 150 feet D. 187.3 feet