Decide whether the composite functions, f ? g and g ? f, are equal to x.f(x) = 7x, g(x) = 
A. No, no
B. Yes, no
C. Yes, yes
D. No, yes
Answer: C
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Find the domain of the composite function (f ? g)(x). Write the domain in interval notation.f(x) = 
, g(x) = 
A. (-?, -10) ? (-10, -9) ? (-9, 0) ? (0, ?) B. (-?, -10) ? (-10, 0) ? (0, ?) C. (-?, -9) ? (-9, 0) ? (0, ?) D. (-?, ?)
Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number.6
÷ 
A. - 3
B. 3
C. 2
D. - 2
Find the asymptotes of the hyperbola.16x2 - y2 = 16
A. y = 
x, y = - 
x
B. y = 4x, y = -4x
C. y = 16x, y = - 16x
D. y = 
x, y = - 
x
Solve the problem.The value, v, in hundreds of dollars, of Juan's television is approximated by 
where t is the number of years since he first bought the television. Graph the equation and use the graph to estimate the value of the television 6 years after it was purchased.
A. $780 B. $600 C. $1200 D. $300