document.write( "Question 611940: Suppose a market research company finds that at a price of p = $50, they would sell x = 60 tiles each month. If they lower the price to p = $45, then more people would purchase the tile, and they can expect to sell x = 75 tiles in a month's time. Find the equation of the line using p = mx+b Please help! Thank you. \n" ); document.write( "
Algebra.Com's Answer #385205 by stanbon(75887)\"\" \"About 
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Suppose a market research company finds that at a price of p = $50, they would sell x = 60 tiles each month. If they lower the price to p = $45, then more people would purchase the tile, and they can expect to sell x = 75 tiles in a month's time. Find the equation of the line using p = mx+b
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\n" ); document.write( "You have 2 points: (60,50) and (75,45)
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\n" ); document.write( "Slope = (45-50)/(75-60) = -5/15 = -1/3
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\n" ); document.write( "p = mx + b
\n" ); document.write( "Solve for \"b\":
\n" ); document.write( "50 = (-1/3)60 + b
\n" ); document.write( "30 = b
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\n" ); document.write( "Equation:
\n" ); document.write( "p = (-1/3)x + 30
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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