Which is the BEST estimate of the average rate of change for the function given in the table, over the interval 2 ≤ x ≤ 6?

a) 5
b) 10
c) 15
d) 20

Which is the BEST estimate of the average rate of change for the function given in the table over the interval 2 x 6 a 5 b 10 c 15 d 20 class=