I'm trying to find where this function increases and decreases:(adsbygoogle = window.adsbygoogle || []).push({});

f(x) = = - x^2 - 6x - 8

I can get the vertex (h, k), which works out [by my math] to be (3, -17).

I'm just not sure where to go from here to get information like:

point of increase and decrease

domain and range

Thanks for any help!

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# Homework Help: PRoblems with precalc functions

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