216k views
4 votes
If f(x) = 8x + 16, then find f -1(x).

2 Answers

4 votes

Answer:

Rewrite

1

x

as

x

.

f

x

User Schof
by
6.6k points
5 votes

Answer:

The inverse is (x-16)/8

Explanation:

To find the inverse, exchange x and y and then solve for y

y = 8x +16

Exchange x and y

x = 8y +16

Solve for y

Subtract -16

x-16= 8y +16-16

x-16 = 8y

Divide by 8

(x-16)/8 = 8y/8

(x-16)/8 = y

The inverse is (x-16)/8

User Nak
by
8.4k points

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