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Answer:

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

We can write that f(x)=4-9x is y= 4-9x

To find the inverse:

-switch x for y and y for x

y= 4-9x becomes x= 4-9y

-solve for y

        x = 4 -9y , subtract 4 from both sides

     x-4 = -9y , divide both sides by -9

(4-x)/9 = y

The inverse equation of f(x) = 4-9x is f^-1 (x) = (4-x)/9

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