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What is the inverse of the function f(x)=1/4x-12
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What is the inverse of the function f(x)=1/4x-12

User Skeeve
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2 Answers

6 votes
f^-1(x)=4x+48



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User Alen S Thomas
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5.8k points
3 votes
Change it into a formula:

y = (1)/(4) x - 12
Change x and y and solve for y:


x = (1)/(4) y - 12
Remove the fraction by multiplying both sides by 4:

4x = y - 48
Then solve for y:

y = 4x + 48
The inverse is:

{f(x)}^(-1) = 4x + 48
User Ericbae
by
6.3k points
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