I had 5 questions, i wrote em up in photoshop i thought it would be easier.

1.

2.

3.

4.

5.

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- March 27th 2008, 10:33 AM #1

- Joined
- Mar 2008
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- March 27th 2008, 11:05 AM #2
## Here is #2

we know that

We want to minimize A

subbing the first into the second we get...

Since we want the minimum value we need to find the vertex of the parabola.

There are a few different ways. Since it is symmetric about its vertex the vertex is half way between its intercepts -24 and 0 so at -12

or we could use the vertex fromula

Now that we know y we can solve for x

so the minimum product is