(3) (3 pts) Find the slope of the tangent line to the graph of y = f(x) = x at x = 1. Hint: Recall that the slope of the tangent line to he graph of f(x) at x = a is given by the limit f(x) = f(a) Write down the limit explicitly. Then apply appropriate algebraic tricks to compute it. The factorization x - 1 = (x - 1)(x+x+1) might be helpful. lim xa x-a