These tables represent an exponential function. Find the average rate of change for the interval from x = 8 to x = 9.
х
Interval
0
1
у
1
3
9
27
81
243
729
Average rate
of change
2
]x3
6
]*3
18
|]x3
54
|]x3
162
|]x3
486
O to 1
1 to 2
2 to 3
3 to 4
4 to 5
5 to 6
3
4
5
6
A. 19,683
B. 6561
C. 13,122
D. 3