Find the phase shift of the function.y = -5 cos 
A. 
units to the left
B. 
units to the right
C. 5? units to the right
D. ? units to the left
Answer: D
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Fill in the blank with one of the words listed below.
A(n) 
is a point of the graph where the graph crosses the y-axis.
A. y-intercept B. x-intercept C. x-axis D. y-axis
Find a formula for the inverse of the function described below.An organization determines that the cost per person of chartering a bus is given by the formula 
where x is the number of people in the group, and C(x) is in dollars.
A. C-1(x) = 
B. C-1(x) = 
C. C-1(x) = 
D. C-1(x) = 
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.5 log6 5 + 
log6(r - 2) - 
log6 r
A. log6 
B. log6 
C. log6 
D. log6 
Find all x-intercepts of the function.f(x) = (x - 4)2 + 3(x - 4) - 18
A. (-7, 0), (2, 0) B. (-6, 0), (1, 0) C. (-2, 0), (7, 0) D. (-1, 0), (6, 0)