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Mathematics 20 Online
OpenStudy (anonymous):

write the domain and range of the function in interval notation. f(x)=√x-3

terenzreignz (terenzreignz):

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

OpenStudy (anonymous):

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

terenzreignz (terenzreignz):

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

OpenStudy (anonymous):

No! ha!

terenzreignz (terenzreignz):

Then...? ;)

OpenStudy (anonymous):

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

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