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# Area Under A Curve watch

1. I need to find out the area under a curve between -5 and 5.
The curve is x2-2x-24.
Any pointers would be appreciated.

Barney

Barney
4. (Original post by Barney63)
I need to find out the area under a curve between -5 and 5.
The curve is x2-2x-24.
Any pointers would be appreciated.

Barney
Intergrate x^2-2x-24

Substitute 5 into the integral

Then substitute -5 into the integral

Then subract the answer u get for substituting -5 into the integral from the answer u get from substituting 5 into the integral.

I think this is correct, but it would help if I had a drawing(which I can't be bothered to draw)
5. Many thanks for that, all is now clear.

Barney
6. (Original post by Vorsah)
I think this is correct, but it would help if I had a drawing(which I can't be bothered to draw)
See attached.
Attached Images

7. Be careful about positive/negative areas - you'll have to integrate it between -5 and -4 and -4 and 5, then add them together

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