Willis analyzed the following table to determine if the function it represents is linear or non-linear First he found the differences
in the y-values as 7 - 1 = 6, 17 - 7 = 10 and 31 - 17 = 14. Then he concluded that since the differences of 6, 10, and 14 are
increasing by 4 each time the function has a constant rate of change and is linear What was Willis's mistake?
3
4
17
31
He found the differences in the y-values as 7 - 1 = 6, 17 - 7 = 10 and 31 - 17 = 14
He determined that the differences of 6. 10. and 14 are increasing by 4 each time
He concluded that the function has a constant rate of change
He reasoned that a function that has a constant rate of change is linear
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