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15-04-2020
Mathematics

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What is the inverse of the function f(x) = 1/9 x + 2

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wegnerkolmp2741o wegnerkolmp2741o

15-04-2020

Answer:

9x -18

Step-by-step explanation:

f(x) = 1/9 x + 2

Let y = 1/9x +2

Exchange x and y

x = 1/9 y +2

Solve for y

Subtract 2 from each side

x-2 = 1/9 y +2-2

x-2 = 1/9 y

Multiply each side by 9

9(x-2) = 1/9 y *9

9x -18 = y

The inverse is 9x -18

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