Homework Help: math

Posted by jane on Friday, April 22, 2011 at 10:27pm.

Consider the cubic graph y = 3x^2 − x^3.

(a) Write 3x^2 − x^3 in factored form.

(b) Use this form to explain why the graph lies below the x-axis only when x > 3, and why the origin is therefore an extreme point on the graph.

I mostly need help with what an extreme point is,
Thanks!

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