document.write( "Question 352207: A new car worth $45000 is depreciating in value by $5000 per year. Write a formula that models the car's value, y, in dollars, after x years. Use the formula from part (a) to determine after how many years the car's value will be $10000. Graph the formula from part (a) in the first quadrant of a rectangular coordinate system. Then show your solution to part (b) on the graph. \n" ); document.write( "
Algebra.Com's Answer #252096 by sofiyac(983)\"\" \"About 
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A new car worth $45000 is depreciating in value by $5000 per year. Write a formula that models the car's value, y, in dollars, after x years. Use the formula from part (a) to determine after how many years the car's value will be $10000. Graph the formula from part (a) in the first quadrant of a rectangular coordinate system. Then show your solution to part (b) on the graph.
\n" ); document.write( "a) \"y=45000-5000x\"
\n" ); document.write( "now plug in y=10000
\n" ); document.write( "\"10000=45000-5000x+\" subtract 45000 from each side
\n" ); document.write( "\"-35000=-5000x+\" divide each side by -5000
\n" ); document.write( "\"7=x+\"
\n" ); document.write( "So after 7 years the car will be worth 10000.\r
\n" ); document.write( "\n" ); document.write( "\"+graph%28+500%2C+500%2C+0%2C+100%2C+0%2C+45000%2C+45000-5000%2Ax%29+\" \r
\n" ); document.write( "\n" ); document.write( "I did not see question b) in the problem.
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