rag the purple X on the graph below to vary the length of the interval h ii the length of h is 3 iii the length of h is 1 160 y iv the length of h is 0 5 140 120 100 80 60 40 20 h 6 00 4 22 40 2 6 a Use the applet above to determine the value of the difference quotient the average rate of change near the point 4 f 4 whe i the length of h is 5 Preview Preview Preview 10 00 80 00 Preview 8 10 12 14 16 X