Asked by Dan

Given the function y= (2x-3)(3x-1), which finite differences will be constant?
a) first differences
b) second differences
c) third differences
d) fourth differences
Answered by oobleck
linear: 1st
quadratic: 2nd
cubic: 3rd
and so on

actually, "... and higher" will also apply, since after you reach a constant difference, all the rest are zero, which is also constant.
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