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Mathematics 10 Online
OpenStudy (anonymous):

Geogebra problem. Can anyone with this software help?

OpenStudy (saifoo.khan):

Sure. What's up?

OpenStudy (anonymous):

ok this is the inequality I'm tring to graph :0 < x^4 – 6x^3 + 6x^2 + 9x + 2 When posted to wolfram i get a W type graph ( http://www.wolframalpha.com/input/?i=0+%3C+x%5E4+%E2%80%93+6x%5E3+%2B+6x%5E2+%2B+9x+%2B+2+ link if you want it) when trying to graph on Geogebra this is what i get

OpenStudy (saifoo.khan):

@dpaInc @Hero

hero (hero):

I'm pretty sure you cannot graph that in geogebra or wolfram alpha. The reason is because you only have one variable. A one variable equation implies working in one dimension. It would be the same as trying to graph x > 3 in a 2D graph. It's just not possible to do so.

OpenStudy (anonymous):

Than why am i getting the W shaped graph in wolfram?

hero (hero):

Oh, I see. Hang on.

hero (hero):

I hope that works for you

hero (hero):

Actually, just type this in the input box in geogebra: y < < x^4 – 6x^3 + 6x^2 + 9x + 2

hero (hero):

y < x^4 – 6x^3 + 6x^2 + 9x + 2

OpenStudy (anonymous):

It worked! Thank you. Why did replacing 0 for y work though?

hero (hero):

Because wolfram alpha is smarter than geogebra. Geogebra has to be told exactly what to do whereas wolframalpha basically takes inputs and actually interprets them.

OpenStudy (anonymous):

O.k. cool! Thanks again!

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