These tables represent a quadratic function with a vertex at (0, -1). What is the average rate of change for the interval from x = 8 to x = 9?
х
y
Interval
0
1
Average rate
of change
1
41-2
13
1-2
15
10-2
-7
41-2
19
41-2
111
0 to 1
1 to 2
2 to 3
3 to 4
4 to 5
5 to 6
+++
4
5
-17
-26
37
O A. -82
B. -2
C. -17
D. -65

it would open into a square depending on the type of envelope i’m not sure about the second part

oof

step-by-step explanation:

answer: 800

step-by-step explanation:

using the formula for pythagorean theorem (a2+b2=c2)(the twos are exponents), and knowing that you have b squared and c squared, just reverse it. 26 squared minus 10 squared equals c squared. 26 squared is 676 and 10 squared is 100. you get 576, then use your square roots to undo the squared numbers to get 24.