Question

Find the average rate of change for the given function from x = −1 to x = 2.

answer choices:

-1/3

1/3

−3

3

Answer 1

please help

Answer 2

@Arfney

Answer 3

The average rate of change in a linear equation (what your problem is) is the m value in the equation: y = mx + b

Answer 4

To get the m value you need to use the equation change in rise over change in run:
(Y(1)-Y(2))/(X(1)-X(2))
Where X(1) = -1 and X(2) = 2.
So what are the Y values of X(1) and X(2)?

Answer 5

In other words what is Y when x = -1
and what is Y when x = 2?

Answer 6

ummm would itt be 0?

Answer 7

Nope, You are kind of trying to find the angle of the line in a since,
Can you tell me what
Y is when x = -1
and what is Y when x = 2?

Answer 8

2?

Answer 9

Is that for the answer?

Answer 10

no i was saying y is on x when x= -1

Answer 11

idk im confused i think it is -1/3?

Answer 12

It would be -3
-4-5=-9
2+1=3
-9/3=-3

Answer 13

oh ok thanks really do appreciate it.

Answer 14

Yup!