Worksheet: Derivative as the slope of the tangent line 1) Determine whether the derivative y' is positive, negative or zero at the following points. At x = a, y' is At x = b, y' is At x = c, y' is At x = d, y' is b At x = 0, y' is 2) The graph of y = f(x) is given below. Sketch a graph of the derivative m = f ' (x) V=f(x) m=f(x)3) The graph of y = f(x) is given below. a) Sketch a graph of the derivative m = f' (x) * m=f(x) b) At what values of x is f not differentiable? c) At what values of x is f not continuous