If f (x) = 8x + 16, then find f - 1 (x).

The inverse is (x-16) / 8

Step-by-step 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

Rewrite

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1

x

as

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x

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f

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x