1 Using the graph of the function f x in the diagram below a b C 17 16 15 14 134 12 11 10 9 84 7 6 worth 8 points Draw the secant line over the interval 0 6 Approximate the slope of the secant line Draw what appears to be a tangent line at x 8 Approximate the slope of the tangent line Write an equation of the tangent line at x 8 2 1 4 10