(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Sketch the graph of x ^ (4/9) * e ^ (-x)

2. Relevant equations

None.

3. The attempt at a solution

My y' = -x ^ (4/9) * e ^ (-x) ( 1 - 4/9x ^ 1/9). I keep on getting a reaaally long derivative for y'' and thus cannot place it on my sign table. Could someone please show me the correct steps in order to get a simplified y''?

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# Homework Help: Help with simplifying derivatives when sketching graphs

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