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Mathematics 17 Online
OpenStudy (anonymous):

1.The increasing interval(s) of y=x^2+4x-2 are? 2.The decreasing interval(s) of y=x^2+4x-2 are? 3.The decreasing intervals of y=x^3+2x-1 are?

OpenStudy (junyang96):

Differentiate it and then find the critical points

OpenStudy (loser66):

Calculus or precalculus? if it is calculus, then do as @junyang96 suggested if it is precalculus, then draw the graph out and determine when it is up.

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