Question

how do you find the range and domain of (x+2)^2

Answer 1

\[(x+2)^{2}\]

Answer 2

You find the domain by checking the possible values x can have. in this case, it's R.
You find the range by checking the values y or f(x) can have. in this case, y>=0

Answer 3

you first have to expand it and then grph it. thats the easiest way i kno.....

Answer 4

I need to know how to solve it using algebra

Answer 5

does anyone know how?

Answer 6

i just told you

Answer 7

what equation could i set up?

Answer 8

it doesn't need any equation in this question.
x can have any value because it's not in denominator or under radical. so domain is R
y will be possitive because it's the result of a squared equation which is always positive. so range is >= 0

Answer 9

ohhh. okay. What if it was 1/(x+2)^2

Answer 10

in that case, u should find the value of x where x+2 = 0. and the domain will be everything EXCLUDING that value.

Answer 11

thanks!

Answer 12

no problem