Select all that apply. The definite integral of a continuous function f(x) over the interval [a,b] gives us the slope of the tangent line to the curve y = f(x) at x = a. the slope of the secant line between points (a,f(a)) and (b,f(b)). the average rate of change of f(x) on [a,b]. the net amount of change in a quantity Q if f(x) represents the rate of change of this quantity. the net area between f(x), the x-axis, and the lines x = a and x = b