Answer:
-1.5
Step-by-step explanation:
So your set of points I believe is:
(1,4)
(2,2.5)
(3,1)
(4,-0.5)
You are asked to find the average rate of change. This just means find the slope.
So you can make sure the slope is the same per pair of points.
So I like to find the slope by lining two points up vertically and subtracting vertically then put 2nd difference over 1st difference.
(2 , 2.5)
-( 1 , 4)
----------------
1, -1.5
So the slope is -1.5/1 or just -1.5.
Check another pair:
(3 , 1 )
- (2 ,2.5)
------------
1 , -1.5
So the slope is -1.5/1 or just -1.5.
Check one more:
(4 , -.5)
-(3 , 1)
-----------
1, -1.5
So the slope is -1.5 or just -1.5
So the average rate of change is -1.5.
Answer:isis
2)227
Step-by-step explanation:
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