Question

Find the inverse
f(x)=√(x-7)

Answer 1

write as
\[\Large y=\sqrt{x-7}\]
now replace all x with y 's and all y's with x
\[\Large x=\sqrt{y-7}\]
solve this for y
can you solve this ?

Answer 2

when we want a inverse we just solve for the independent variable.

Answer 3

thanks