Question

Think I got the answer help please.
Find the average rate of change for the function over the given interval.
y= x^2 between x=-5 and x=10
I think the answer may be -5

Answer 1

Well the average rate of change....is delta y / delta x

delta x is the difference between your x-values

10 - (-5) = 15 is your delta x

to find your delta y...you plug in both those numbers into the equation...and take the difference between the 2 values

10^2 = 100
-5^2 = 25

100 - 25 = 75 this is your delta y

so delta y / delta x =

75
---
15

which equals 5

Answer 2

Thank-you

Answer 3

remember....delta y ...is

y2 - y1

delta x is x2 - x1

x2 = 10
x1 = -5

y2 = 100
y1 = 25

so you would do

y2 - y1
-------
x2 - x1

which came out to 5

Answer 4

and your welcome!