Answer:
its the last one.
Step-by-step explanation:
easy way to do inverse functions:
write out equation :
y = 2[tex]x^{2}[/tex] + 2
Switch the x and y:
x = 2[tex]y^{2}[/tex] + 2
Solve for y :
x = 2[tex]y^{2}[/tex] + 2
subtract 2 both sides
x - 2 = 2[tex]y^{2}[/tex]
Divide both sides by 2
[tex]\frac{x}{2}[/tex] - [tex]\frac{2}{2}[/tex] = [tex]y^{2}[/tex]
reduce fraction and square root both sides
