Question

Find the inverse of y=5x+3

Answer 1

Answer:

$f^{-1}$(x) = $\frac{x-3}{5}$

Step-by-step explanation:

Rearrange the equation making x the subject

y = 5x + 3 ( subtract 3 from both sides )

y - 3 = 5x ( divide both sides by 5 )

$\frac{y-3}{5}$ = x

Change y to x then

$f^{-1}$(x) = $\frac{x-3}{5}$