[FONT="]I am trying to find by the integration the area enclosed by the x-axes, y-axes and is under the line y=x+2 (i.e, a triangle in the second quarter). When I take a horizontal element, the final result for the integration is -2. When I take a vertical element, the final result of the integration is +2. Is it possible to have two different signs for the results, if yes, why? Can you please solve it with the two elements types if my final result(s) are wrong.[/FONT]