Question

Average rate of change. Need help setting up the equation PLEASE!
What is the average rate of change of f(x), represented by the graph, over the interval [-1, 2]

Answer 1

little help @sleepyjess

Answer 2

do you know what "over the interval [-1, 2]" means?

Answer 3

my understandingis reading the graph to set up the equation.

Answer 4

f(b)-f(a)/b-a

Answer 5

Im pretty sure I deive each term but this graph is confusing me

Answer 6

*divide

Answer 7

are you supposed to use the x values of -1 and 2?

Answer 8

yes x/y

Answer 9

@ganeshie8

Answer 10

\[f(2)-f(-1)/2-(-1)\]

Answer 11

Is that how you set it up?

Answer 12

is there an equation?

Answer 13

no thats another problem. :/

Answer 14

You don't actually need it since you can use the information provided by the graph. However, the function depicted is: \(\displaystyle f(x) = \frac{5}{x}\)

Answer 15

(2.5-5)/(2-(-5) My problem is understand how to read the graph

Answer 16

wouldn't it be -5?
if so then x=-5/2.5
then xwould = -2

Answer 17

@surjithayer can u help me please?

Answer 18

you line -1 up with -5 yes? and then line up 2 with 2.5 yes? Not sure if I am doing this correctly.

Answer 19

@NoelGreco are u busy?

Answer 20

2.5-(-5)/2-(-1) = 2.5

Answer 21

@Loser66 can you help me please?

Answer 22

omg I hate math!!!!

Answer 23

now Im even more confused. how do I set up this problem do you know?

Answer 24

2.5-5/((2-(-5)/0-2)) :(

Answer 25

yes

Answer 26

That's why I said I hate this problem.

Answer 27

so could that be cancled out

Answer 28

I don't know probably not

Answer 29

so was I totally wrong on the steps to do this problem?

Answer 30

im watching a video on it now. Thanks for trying to help.