Question

How do you find the domain and range of `(x-1)^2-9`?

Answer 1

`"domain " x inRR`

`"range " y in RR,y>=-9`

Explanation:

`(x-1)^2-9" is defined for all real values of x"`

`rArr"domain is " x inRR`

`(x-1)^2 >=0" for all real values of x"`

`rArr" range is " y inRR,y>= -9`
graph{(x-1)^2-9 [-28.1, 28.09, -14.05, 14.04]}