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# Integration watch

1. Question- I know that integration is the area under curve, however what happens if the curve goes below the x-axis? Thank you
2. (Original post by Deathlotus)
Question- I know that integration is the area under curve, however what happens if the curve goes below the x-axis? Thank you
Integration along the x-axis i.e. using gives you the area enclosed by the curve and the x-axis itself with area below the x-axis is treated as negative.
3. it doesnt matter. You will get a negative answer but area is always positive so just disregard the minus sign.

(Original post by Deathlotus)
Question- I know that integration is the area under curve, however what happens if the curve goes below the x-axis? Thank you
4. If the curve is above and below the x axis it will give you the net area between the curve and the x axis - could be negative or positive. If it was 0 then the area of the curve under the x axis would be the same as the area of the curve above the x axis.

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