document.write( "Question 139902: I am not sure if I have this correct. I did try it though. In 1992 the average price of a lot on the beach near a town on Puget Sound was $94,000. By 1999, the average price of a home was $129,000. Find a linear model for the price of such a lot on the beach, P, if t=o represents the year 1992.\r
\n" ); document.write( "\n" ); document.write( "Here is my answer: P=$35,000t+$94,000 \n" ); document.write( "
Algebra.Com's Answer #101977 by edjones(8007)\"\" \"About 
You can put this solution on YOUR website!
Mark the years on the x portion of a graph and the home prices on the y.
\n" ); document.write( "(x,y) (0,9.4)(7,12.9) are the 2 points on the graph.
\n" ); document.write( "slope=m=(y[2]-y[1])/(x[2]-x[1])
\n" ); document.write( "=12.9-9.4 / 7-0
\n" ); document.write( "=3.5/7
\n" ); document.write( "=1/2=.5
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\n" ); document.write( "point slope form of the equation of a line=y-y[1]=m(x-x[1])
\n" ); document.write( "take (0,9.4) as the point.
\n" ); document.write( "y-9.4=.5(x-0)
\n" ); document.write( "y-9.4=.5x
\n" ); document.write( "y=.5x+9.4 Answer
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\n" ); document.write( "\"graph%28500%2C500%2C-10%2C10%2C-2%2C18%2C.5x%2B9.4%29\"
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