# Domain/Range of this e graph

• Dec 15th 2010, 03:13 PM
Domain/Range of this e graph
y = e^3x
Attached is the graph, not sure what domain and range is?
• Dec 15th 2010, 03:28 PM
Prove It
Is your function $\displaystyle \displaystyle e^{3x}$ or $\displaystyle \displaystyle e^3x$? Because it looks like you've graphed the second...
• Dec 15th 2010, 03:29 PM
Plato
The image that you posted is of the graph $\displaystyle e^3x$ which is a line.

I suspect you want the graph of $\displaystyle e^{3x}$.

Is that correct?
• Dec 15th 2010, 06:56 PM
Yeah!
Let me fix the graph..
• Dec 15th 2010, 07:06 PM
Thanks for helping guys.

Actually I did do the graph wrong, as it is y= e^(3x)

So domain: x equals R
range: y > -1
• Dec 15th 2010, 07:09 PM
snowtea
For the range $\displaystyle y\geq 0$
y can never be negative right?
• Dec 15th 2010, 07:25 PM
eddie2042
Quote:

I agree with your domain; also it's not 'x equals R', it's $\displaystyle x \epsilon \mathbb{R}$, meaning x belongs to the set of all real numbers.