Help me. Please help me find the right domain. Help me find range and graph. Thank you!

http://img191.imageshack.us/img191/7460/math111.jpg

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- Jul 1st 2010, 03:34 AMreiwardfunctions
Help me. Please help me find the right domain. Help me find range and graph. Thank you!

http://img191.imageshack.us/img191/7460/math111.jpg - Jul 1st 2010, 03:39 AMProve It
The domain is actually $\displaystyle \mathbf{R}$.

If you were to graph this, you would have a horizontal graph $\displaystyle y = -6$ ending at $\displaystyle x = -3$, a horizontal graph $\displaystyle y = 6$ starting at $\displaystyle x = 3$, and joined with a "diagonal" line $\displaystyle y = 2x$.

So for what values of $\displaystyle y$ is this function defined? - Jul 1st 2010, 04:05 AMreiward
The domain is the range or the set of all real number?

I dont get the range help please.

Also did you mean horizontal graph y = -6 starting at x = -3 ?

I didn't get the graph. Can anyone draw please? - Jul 1st 2010, 06:38 AMskeeter