Let f(x) = ex. For the function g, find A satisfying g(x) = f(Ax), and describe how the graph of f is transformed to be identical to the graph of g. g(x) = 
x
A. A = ln 
; Transform the graph of f by a horizontal scale transformation with factor 
= 
.
B. A = ln 4; Transform the graph of f by a horizontal scale transformation with factor 
= 
.
C. A = ln 4; Transform the graph of f by a horizontal scale transformation with factor A = ln 4.
D. A = ln 
; Transform the graph of f by a horizontal scale transformation with factor A = ln 
.
Answer: A
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Express the given function as a composite of functions f and g such that y = f(g(x)).y = 
A. f(x) = 
, g(x) = 8x - 9
B. f(x) = 
, g(x) = 8x + 9
C. f(x) = -
, g(x) = 8x + 9
D. f(x) = x, g(x) = 8x + 9
Determine whether the expression is a polynomial. If it is a polynomial, give its degree.
A. polynomial, degree 1 B. polynomial, degree 8 C. polynomial, degree 15 D. not a polynomial
Change to a percent.
A. 260% B. 26% C. 26,000% D. 2600%
Find all real numbers that satisfy the equation.cos 2? = - 
A. 
B. 
C. 
D. 