Question

Find the inverse for f(x)= sqrt2x-6

Answer 1

Answer:

f^-1(x) = (x^2 +6)/2

Step-by-step explanation:

f(x) = y

y = $\sqrt{2x-6}$

to get the inverse replace x with y

so x = $\sqrt{2y-6}$

by squaring both sides

x^2 = 2y-6

y = (x^2 +6)/2