Two functions, function A and function B, are shown below: Function A x y 7 21 8 24 9 27 Function B The first quadrant of a coordinate grid is shown from 0 to positive 10 on both axes at intervals of 1. The title is Function B. Only the even numbers are shown on the scale. A line is drawn by connecting the points on ordered pairs 2, 4 and 3, 6 and 4, 8. Which statement best compares the rate of change of the two functions?