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Lily wants to track her store’s progress as time goes on. She makes a table of values with one variable being time in weeks and the other variable being the amount of money the store makes in thousands of dollars. Find a polynomial function that models Lily’s sales.

 

Time (x)

1

2

3

4

5

6

7

Revenue (y)

0.5

3

9.5

23

46.5

83

135.5

 

Correct!