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Camryn Walkley Camryn Walkley
wrote...
5 years ago
How do you determine whether a function is linear, quadratic, or cubic if you just have a table of numbers to look at?
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wrote...
Educator
5 years ago
Hi Camryn

Several ways actually. Let's start with tables that are presumed to be linear.

If the first differences of y's are consistent, then it's a linear equation producing that table

Next, if the second differences are the same, then it's quadratic.

Cubic is more of the same. Find the third differences.



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