Answer:
I hope my answer is right but im pretty sure its 26.13 :)
Step-by-step explanation:
The average rate of change is given by [f(b) - f(a)]/(b - a), where a and b represent the interval [a, b].
Let a = -2
Let b = -1
[(-1)^2 + 10 - ((-2)^2 + 10)]/(-1 -(-2))
[1 + 10 - (4 + 10)]/(-1 + 2)
[1 + 10 -4 -10]/(1)
[1 - 4]/(1)
-3/1
Answer: -3
Don’t take my word for it but I think 3rd option
No there are 3 feet in a yard