+rep What a ♥♥♥♥♥♥♥ legend. Love this guy.

For a continuous function y = f(x) whose graph is plotted as a curve, each value of x has a corresponding area function A(x), representing the area beneath the curve between 0 and x. The function A(x) may not be known, but it is given that it represents the area under the curve.

The area under the curve between x and x + h could be computed by finding the area between 0 and x + h, then subtracting the area between 0 and x. In other words, the area of this “strip” would be A(x + h) − A(x).

There is another way to estimate the area of this same strip. As shown in the accompanying figure, h is multiplied by f(x) to find the area of a rectangle that is approximately the same size as this strip

-rep ♥♥♥♥♥♥♥ jew

+rep

+rep What a ♥♥♥♥♥♥♥ legend. Love this guy.

+rep Good teammate