Mathematics: F(x) = 3x - 9 Find inverse

F(x) = 3x - 9 Find inverse - id397785785, EdgeTheWizard

cdyshaylia55

02.02.2022

$f^{-1} (x)=\frac{x}{3}+3$

Step-by-step explanation:

write as an equation

y=3x-9

interchange the variables

x=3y-9

solve for y:

3y-9=x

add 9 to both sides

3y=x+9

divide each term by 3

$\frac{3y}{3} =\frac{x}{3}+\frac{9}{3}$

simplify

$y=\frac{x}{3}+3$

replace y with $f^{-1}(x)$ to show the final answer of the inverse

$f^{-1} (x)=\frac{x}{3}+3$

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maggie123456751

03.12.2022

5:1

Step-by-step explanation:

I'm not positive on this but adding math and science would be 14 plus 11 plus 10, which is 35. 35 divided by 7 is 5

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