# Graphing polynomials

I'm trying to learn to factor polynomials, and I'm trying to graph

$$30x^5 – 166x^4 – 542x^3 + 2838x^2 + 1520x – 800$$

from here on Purplemath.

When I graph polynomials on my NSpire CS CAX or here it doesn't match up with what the picture gives. What am I doing wrong?

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We have no way of knowing what you're doing wrong if you don't tell us what you did. Are you sure you entered it correctly? Are you sure the axes match? –  Qiaochu Yuan May 1 '12 at 21:43
You should play a little with the "Y-Scale" button. –  Xabier Domínguez May 1 '12 at 21:45
@Qiaochu Yuan I entered the equation in and told it to graph. –  CrewdNBasic May 1 '12 at 21:50
@CrewdNBasic I did too and it worked fine for me. –  Antonio Vargas May 1 '12 at 22:18
What PurpleMath gave was right. Check snipurl.com/23bm97v –  Jeremy Carlos May 1 '12 at 22:30