document.write( "Question 1152234: The average value of a certain type of automobile was $14,100 in 1994 and depreciated to $7020 in 1998. Let y be the average value of the automobile in the year x, where x = 0 represents 1994. Write a linear equation that models the value of the automobile in terms of the year x. \n" ); document.write( "

Algebra.Com's Answer #774209 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Use the general point slope formula
\n" ); document.write( " $\"+%28+y+-+7020+%29+%2F+%28+x+-+4+%29+=+%28+14100+-+7020+%29+%2F+%28+0+-+4+%29+\"$
\n" ); document.write( " $\"++%28+y+-+7020+%29+%2F+%28+x+-+4+%29+=+7080+%2F+%28-4%29+\"$
\n" ); document.write( " $\"++%28+y+-+7020+%29+%2F+%28+x+-+4+%29+=+-1770+\"$
\n" ); document.write( " $\"+y+-+7020+=+-1770x+%2B+7080+\"$
\n" ); document.write( " $\"+y+=+-1770x+%2B+14100+\"$
\n" ); document.write( "-------------------------------
\n" ); document.write( "check answer:
\n" ); document.write( "( 4, 7020 )
\n" ); document.write( " $\"+y+=+-1770x+%2B+14100+\"$
\n" ); document.write( " $\"+7020+=+-1770%2A4+%2B+14100+\"$
\n" ); document.write( " $\"+7020+=+-7080+%2B+14100+\"$
\n" ); document.write( " $\"+7020+=+7020+\"$
\n" ); document.write( "OK \n" ); document.write( "

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