No work = No Credit **** 1) The graph gives the position s(t) of an object moving along a line at time t, over a 2.5-second interval. a) Find the average velocity of the object over the interval [1, 2]. b) Find the slope of secant line of the graph of s(t) passing t =1 and t = 2. s (1) 150 136 - 114 84 46 . 2.5 x2 - 1 2) Sketch the graph of f(x)= and use the graph to find the |x - 1| values of lim f(x), lim f(x) and limf(x), if they exist. x-+1- x - 1+ x-1