February 23, 2017

Homework Help: Algebra II repost- please check

Posted by JaneLee on Tuesday, November 27, 2007 at 8:06pm.

I posted these a little while ago but this time I have answered them.
1. Does the graph of y = x – 3x2 + 5 have a maximum or minimum?

2. What is the vertex of the graph of y = -2(x - 3)2 + 4?

3. Does the graph of y = -2(x - 3)2+ 4 open up or down?
My answers: 1. I cannot answer. This is the one I need help with because I don't know how to tell if it has a maximum or minimum. It wasn't in my notes. 2. 1 3. it opens up.

Could someone check 2. &3 and help me with 1? Thanks

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