Suppose that f () is a continuous function on a , b and F(z) - / f(t) at. Part 1 of the Fundamental Theorem of Calculus says that... Of(c) is an antiderivative of F() OF(x) is an antiderivative of f (I) OF(x) is the derivative of f (I) O The area between the the graph of f(x) and the x-axis is equal to the area between the graph of F(x) and the x-axis