For the function f, use composition of functions to show that f-1 is as given.
, 
What will be an ideal response?
Answers may vary. One possible solution is:
1. (f-1 ? f)(x) = f-1(f(x)) = f-1
= 2
+ 7 = 
+ 7 = x;
2. (f ? f-1)(x) = f(f-1(x)) = f
= 
/2 = 2x/2 = x
Mathematics
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A. 25.82 m B. 25.8 m C. 26 m D. 30 m
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Divide.
A. -3
B. -1
C. - 
D. -10
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