SOLUTION: Given f(x) = 7x + 4 , determine the value of f<sup>−1</sup>(−3)  -17 3 -1 1

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Question 1182212: Given f(x) = 7x + 4 , determine the value of f−1(−3) 

-17

3

-1

1
Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
f−1(x) has x's and y's swapped from F(x).

Given f(x) = 7x + 4 , determine the value of f−1(−3) 

That's the same as asking

Given y = 7x + 4, determine the value of x when y = −3.

     -3 = 7x + 4
     -7 = 7x
     -1 = x

f−1(−3) = -1 

Edwin