Question

Find the inverse equation of y=3x-12

Answer 1

Answer:

$f {}^{ - 1}(x) = \frac{x}{3} + 4$

Step-by-step explanation:

$y = 3x - 12$

Flip the variables then solve for y

$x = 3y - 12$

$\frac{x}{3} = y - 4$

$\frac{x}{3} + 4 = y$

$f {}^{ - 1} (x) = \frac{x}{3} + 4$

Answer 2

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