inverse for x is negative
well, since x is squared, it doesn't matter snce (-)^2=(+)
inverse
replace f(x) with y
solve for x
replace x with f invers aka f⁻¹(x) and y with x
y=6x^2+4
minus 4
y-4=6x^2
divide 6
(y-4)/6=x^2
squaer root both sides
[tex] \sqrt{ \frac{y-4}{6} } [/tex]=x
replace x with f⁻¹(x) and replace y with x
f⁻¹(x)=[tex] \sqrt{ \frac{x-4}{6} } [/tex]
