Use the table to write a table of values for f-1(x). State the domain and range for f and for f-1.
A. 
Domain of f = Range of f-1 = {-11, 2, 20}
Range of f = Domain of f-1 = {-7, -16}
B. 
Domain of f = Range of f-1 = {-7, 2, -11}
Range of f = Domain of f-1 = {18, 20, -16}
C. 
Domain of f = Range of f-1 = {-7, 2, 20}
Range of f = Domain of f-1 = {18, -11, -16}
D. No inverse function exists.
Answer: C
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Solve the problem involving related quantities.The president of a certain university makes three times as much money as one of the department heads. If the total of their salaries is $270,000, find each worker's salary.
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Which graph represents the function? 
a. 
b. 
c. 
d. 
e. 