I (a) What is the average velocity in the first 2 seconds after it is thrown? Recall that the average rate of change of a function y = f(x) from x = a to x = b is given by w. ' a We are given 5(t) = 88 + ()4t 7 158, where S is the height (in feet) of an object thrown upward after t seconds, and asked to find its average velocity in the first 2 semnds after it is thrown. Note that average velocity is a change in distance divided by a change in time and has units of . So, the average rate of change formula can be adapted to find an average velocity, Vav' as follows 7 5 I 7 S I average rate of change : w > V 7 M _ av ' _ a :2 {*1 To find the average velocity of the object in the first 2 seconds after it is thrown, iet t1 : 0 and t2 : \\:|