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
х
0
Interval
1
1-2
2.
-2
_5
-10
1-17
Average rate
of change
--1
-3
--5
-7
--9
|--11
0 to 1
1 to 2
2 to 3
3 to 4
4 to 5
5 to 6
3
)-2
1-2
1-2
1-2
4
5
.-26
--37
6
A. -2
B. -82
C-19
D. -101