A scatter-plot of the ten points in the table to the right with two functions f(x)=2x and g(x)=1/2x +4

id Days Cheerios found on the floor

a

1

5

b

2

2

c

3

6

d

4

7

e

5

8

f

6

2

g

7

8

h

8

5

i

9

5

j

10

8

1 Do you think f(x) or g(x) is a better model for this data?

2 What makes you think that?

3 What could we measure, to calculate how much better of a model it is?

4 Neither of these models is the best possible model! What would have to be true of a third model, for us to know that it was a better fit than these two?

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