Question 2 1 pts The expression W is the slope of the secant line of fix) throught ' . The expression W is the slope of. $ a. As :1: gets closer to a , the slope of the secant line approaches the slope of the A tangent line v of f (:13) at a . The rate of change of f (a?) at a is given by the slope of w. The rate of change of f (33) at x is called the derivaVe ofle) 315* and is denoted by the limit of fix) 3 _