O GRAPHS AND FUNCTIONS Word problem involving average rate of change 35 Carmen is driving a racecar. The table below gives the distance D (t) (in meters) she has driven at a few times / (in seconds) after she starts. Time t Distance D (t) (seconds) (meters) 0 0 W 78.3 4 147.6 6 185.4 9 287.1 (a) Find the average rate of change for the distance driven from 0 seconds to 3 seconds. meters per second (b) Find the average rate of change for the distance driven from 4 seconds to 6 seconds. meters per second X