document.write( "Question 1122467: This question is along the lines of determining whether a data set is linear, quadratic, or exponential.
\n" ); document.write( "The data set is this: (the depreciation of a used car over time)
\n" ); document.write( "X = Years
\n" ); document.write( "Y = Value in dollars
\n" ); document.write( "(0, 12,575)
\n" ); document.write( "(1, 11,065)
\n" ); document.write( "(2, 9,750)
\n" ); document.write( "(3, 8,520)
\n" ); document.write( "(4, 7,540)
\n" ); document.write( "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? \n" ); document.write( "
Algebra.Com's Answer #738594 by josgarithmetic(39620)\"\" \"About 
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. \r
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\n" ); document.write( "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.\r
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\n" ); document.write( "\n" ); document.write( "(Put your points, without the place-value comma separators, into http://www.shodor.org/interactivate/activities/OrderedSimplePlot/ ).\r
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