How do you find the equation for the inverse of y=6x-3?

2 Answers
Jul 22, 2018

f^-1(x)=(x+3)/6

Explanation:

"rearrange making x the subject"

6x-3=y

6x=y+3

x=(y+3)/6

rArrf^-1(x)=(x+3)/6

y=\frac{x+3}{6}

Explanation:

Given function:

y=6x-3

6x=y+3

x=\frac{y+3}{6}

Now, setting y=x & x=y in above function, we get the inverse function

y=\frac{x+3}{6}