Question 1122467: This question is along the lines of determining whether a data set is linear, quadratic, or exponential.
The data set is this: (the depreciation of a used car over time)
X = Years
Y = Value in dollars
(0, 12,575)
(1, 11,065)
(2, 9,750)
(3, 8,520)
(4, 7,540)
To me, this data set does not seem to linear, quadratic, or exponential, however my textbook does not say anything about a 'neither' or 'none' option. My only guess is it might be exponential?
Found 2 solutions by josgarithmetic, solver91311:
Answer by josgarithmetic(39620)   (Show Source):
You can put this solution on YOUR website! Plot the points. How does that plot appear? "Depreciation"? This would be a decrease trend. Your points suggest such a trend without any doubt.
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The plot looks nearly linear but looks like a curve, concave up, still decrease from left to right. You could try testing for quadratic model, but the plot appears nearly a line.
(Put your points, without the place-value comma separators, into http://www.shodor.org/interactivate/activities/OrderedSimplePlot/ ).
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Answer by solver91311(24713)  (Show Source):
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