For some reason, I can't remember how to do the integral of f(x).

http://img6.imageshack.us/img6/8615/121201111608pm.png

I don't see F(a)-F(b) giving me any results. thanks for the help.

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- Jan 21st 2011, 10:20 AMkonvosI can't find this integral
For some reason, I can't remember how to do the integral of f(x).

http://img6.imageshack.us/img6/8615/121201111608pm.png

I don't see F(a)-F(b) giving me any results. thanks for the help. - Jan 21st 2011, 10:23 AMANDS!
The integral is nothing more than AREA under a curve. Integration is useful, because most graphs do not have nice straight lines and can't be solved using known formulas for areas of geometric shapes. This however, is a function with nice straight lines.

ALso, using F(a)-F(b) isn't any help because you don't know what the anti-derivative is; of course you don't need it in this instance. - Jan 21st 2011, 12:23 PMCaptainBlack