Question

write the domain and range of the function in interval notation.

f(x)=√x-3

Answer 1

Radicals don't accept negatives in them... so you want it so that the inside of the radical is at least zero.

Answer 2

for the domain I have [3,oo) and for the range I am torn between [0,oo) or [-3,oo)
please help.

Answer 3

Why would you even consider [-3 , infinity) ?
:D
Can a square root ever be negative?

Answer 4

No! ha!

Answer 5

Then...?
;)

Answer 6

Thank you!!!!!!!! :*