document.write( "Question 442009: Hello! I need some help trying to solve parts a and b. I've already used the quadratic formula to find the two zeros (.5 and 2) but I am having trouble moving forward. Thank you so much!!\r
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document.write( "An espresso stand finds that its weekly profit is a function of the price, x, it charges per cup. If x is in dollars, the weekly profit is P(x) = -2900x^2 + 7250x - 2900 dollars. \r
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document.write( "a) Approximate the maximum profit and the price per cup that produces that profit.\r
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document.write( "b) Which function, P(x - 2) or P(x) - 2, gives a function that has the same maximum profit? What price per cup produces that maximum profit? \n" );
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Algebra.Com's Answer #304931 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Hello! I need some help trying to solve parts a and b. I've already used the quadratic formula to find the two zeros (.5 and 2) but I am having trouble moving forward. Thank you so much!! \n" ); document.write( "An espresso stand finds that its weekly profit is a function of the price, x, it charges per cup. If x is in dollars, the weekly profit is P(x) = -2900x^2 + 7250x - 2900 dollars. \n" ); document.write( "-- \n" ); document.write( "Note that value is the average of 0.5 and 2: (0.5+2)/2 = 1.25 \n" ); document.write( "-------------------------------------------------------------------- \n" ); document.write( "a) Approximate the maximum profit and the price per cup that produces that profit. \n" ); document.write( "Maximum for a quadratic always where x = -b/2a = -7250/(2(-2900)) = $1.25 \n" ); document.write( "Then max profit = f(1.25) = $1631.30 \n" ); document.write( "--------------------------------- \n" ); document.write( " \n" ); document.write( "b) Which function, P(x - 2) or P(x) - 2, gives a function that has the same maximum profit? What price per cup produces that maximum profit? \n" ); document.write( "--- \n" ); document.write( "P(x-2) moves all point 2 to the right and changes the price to x = $3.25. \n" ); document.write( "===================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |