hoe to solve

Consider the function y = f(x) given by the graph. If the point P is located at x = 2 and you wish to approximate the slope of the tangent line at P using a second point Q at x = 2.1, which of the following expressions provides the best approximation for the tangent slope? Choose only ONE best answer. A (f(2.1) - f(2)) / (2.1 - 2) (f(2) - (2.1)) / (2 - 2.1)