Answer:
restriction of domain is x>=2
Step-by-step explanation:
Restrict the domain of the function so it has an inverse
To restrict the domain we find the vertex
VErtex form of the equation is
vertex is (h,k). restriction of domain is x>=h
, vertex is (2,0)
So restriction of domain is x>=2
now we find inverse function
Replace f(x) with y
Replace x with y and y with x
To remove square we take square root on both sides
Add 2 on both sides