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Math

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A large factory knows that if it sells it's new gadgets for $10 each, it can sell 350 per month and if it sells the same gadgets for $8 it will sell 500 per month assuming the relationship between price and sales is linear predict the monthly sales of gadgets to the nearest whole number if the price is $6.

Im really confused

  • Math - ,

    if the relationship is linear, the line contains the points

    (10,350) and (8,500)

    so, the equation of the line is

    y-350 = -75(x-10)
    so, when x=6,
    y = -75(6-10)+350 = 650

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