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0
241
2
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http://prntscr.com/mvl8qe

 Mar 9, 2019
 #1
avatar+111394 
0

Notice that when x = -1, y = f(-1)  =  3

 

And when x = 1, y = f(1)  = 27

 

So.....average rate of change is

 

[ f(1) - f (-1) ]

___________  =

     1 - (-1)

 

[ 27 - 3 ]

______   =

      2

 

24

__   =

 2

 

12   ⇒   GOOD JOB!!!

 

 

cool cool cool

 Mar 9, 2019
 #2
avatar
+1

thank you !!

 Mar 9, 2019

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