These tables represent a quadratic function with a vertex at (0, -1). What is the average rate of change for the interval from x= 9 to x= 10?
y
Interval
х
0
1
2.
Average rate
of change
1-2
1-2
17-2
- 7
3-2
9
- 11
3
0 to 1
1 to 2
2 to 3
3 to 4
4 to 5
5 to 6
-10
- 17
-26
-37
4
5
6
A. - 2
B.-82
C101
D.-19