Question: how to calculate the slope of a nonlinear function?
Answer: Find Slope Using Derivative Suppose the slope is being determined at the point (5,5). Substitute the x value in the derivative to find the slope. In this example, 2 * 5 + 3 = 13. Therefore the slope of the nonlinear function y = x^2 + 3x + 2 at point (5,5) is 13.