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I was wondering if someone could help clarify something for me.

I am using excel to find the area under a curve. I am using the :

(B1+B2)/2*(A2-A1) equation to do it. However, due to the nature of the graph, all the value I am getting are negative.

The values on the X axis decrease as the value on the Y axis increase and thus A2- A1 value are always negative giving a negative results to all my values.

I am wondering, do I just ignore the minus sign and just take the number itself as the area under curve?

The final value I got attained by summation was -3153.

My apology if the answer is straightforward. I have been away from this area for many years and I am very rusty.

Thank you in advanced and I do apologise if the thread was not posted in the right section.

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# I Area under curve using Excel question

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