Average Rate If a function is linear, then the average rate of change will be the same between any pair of points. . If a function is linear, then the average rate of change is the slope of the linear function. Problem 5 Is the Function Linear? - Determine if the functions, represented in the tables below, are linear. If the function is linear, give the slope and vertical intercept. Then and write the equation I -4 -1 2 8 12 23 42 (a) A() -110 -74 -38 34 82 214 442 a -1 2 3 5 8 10 (b) T(a) 5 -1 1 11 41 71 11 89 I -4 -1 (c) g(x) 42 27 12 22 37 5 8 9 2 19