The price of a certain item changes over time. The equation y=−3.42x^2+173.64x−983.48 models the total y dollars of profit a company makes in one day on the item the when the price of the item that day is x dollars. What is the approximate profit the company makes on the item on a day when the item price is $12?

$492.48

$607.72

$1592.68

$2574.68

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an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )