Question

Find the inverse equation of y=3x-12

Answer 1

y=3x-12 (Rewrite the equation)
x= 3y-12 (switch the place of x and y)
x+12/3 = 3y/3 (divide 3 by both sides)
1/3x +4=y
y= 1/3x+4

Answer 2

`f {}^( - 1)(x) = (x)/(3) + 4`

Explanation:

`y = 3x - 12`

Flip the variables then solve for y

`x = 3y - 12`

`(x)/(3) = y - 4`

`(x)/(3) + 4 = y`

`f {}^( - 1) (x) = (x)/(3) + 4`