3 years ago

What is the inverse of function f?

Mathematics

1 answer:

kari74 [83]3 years ago

5 0

9514 1404 393

Answer:

D. f^-1(x) = 3 -7x

Step-by-step explanation:

Solve x = f(y) for y to find the inverse function.

x = f(y)

x = (3 -y)/7 . . . . . . use the function definition

7x = 3 -y . . . . . . . .multiply by 7

y = 3 -7x . . . . . . . add y-7x to both sides

Then the inverse function is ...

$\boxed{f^{-1}(x)=3-7x}$

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