Question

Can anyone help with Domains?

Answer 1

give an example of each of the following IS. A. a function whose domain is (2,infinity sign)

Answer 2

Well, think of a way to restrict the domain to being no less than 2, using a square root.

Answer 3

You can have other ways, I am just saying...

Answer 4

You're speaking a foreign language right now :( i have no idea how that works

Answer 5

My bad actually, it is an open interval, the 2 is not included.

Answer 6

\(\Large\color{black}{ y=\frac{\sqrt{x-3}}{x-3} }\)
would make it, (3,infinity)

Answer 7

So i would substitute the 3 with the 2?

Answer 8

Yes,
Or, an easier example,
\(\Large\color{black}{ y=\log(x-2) }\)

Answer 9

because log of zero is undefined, x>2...

Answer 10

That makes much more sense that what my teacher was trying to tell me. thank you @SolomonZelman

Answer 11

Anytime