Z00050. Do the following for the function g(x) = 10x2 + 5x
(a) Express the slope of the secant line in terms of x and h.
(b) Find msec for h = 0.5, 0.1 and 0.01 at x = 1. What value does msec approach as h approaches 0?
(c) Find the equation for the secant line at x = 1 with h = 0.01.
(d) Graph g and the secant line found in part (c) on the same viewing window.
Solution :