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grade 11 math

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a market researcher predicted that the profit function for the first year of a new business would be p(x)= -0.3x^2 + 3x -15, where x is based on the number of items produced. will it be possible for the business to break even in its first year?


  • grade 11 math -

    to break even, p(x) = 0
    -.3x^2 + 3x - 15 = 0
    times -10
    3x^2 - 30x + 150=0
    x^2 - 10x + 50 = 0
    x = (10 ± √-100)/2

    this has no real solution, the company will never make a profit.

  • grade 11 math -

    Where did the "times -10" come from?

  • grade 11 math -

    in order to break even he would have to produce

    -o.3x^2+3x-15 factor use quadratic formula
    you get two answers
    5+the square root of 27
    5-the square root of 27
    because the second answer gives you a negative (you cant produce a negative amount of product) use the first one

    10.19615242 is equivalent to x

    so unless you can produce and sell .19615242 of a product which i don't know depending on the industry you just might be able, he cant break even.

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