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Math Help - Quadratic Equation

  1. #1
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    Quadratic Equation

    I am having such trouble with these type of problems. Can anyone or someone help me out on this problem. The problem is as followsCrying)

    Let's say that a company's profitability, p(t), follows p(t) = t^2 - 5t - 50 with p(t) in units of $1k and t = fiscal months. How long in years will it take the company to be $ 100k in the black (i.e., p(t) = $1000,000)?
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  2. #2
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    Quote Originally Posted by tricey36 View Post
    I am having such trouble with these type of problems. Can anyone or someone help me out on this problem. The problem is as followsCrying)

    Let's say that a company's profitability, p(t), follows p(t) = t^2 - 5t - 50 with p(t) in units of $1k and t = fiscal months. How long in years will it take the company to be $ 100k in the black (i.e., p(t) = $1000,000)?

    we want to know when p(t)=100 that is

    t^2-5t-50=100 \iff t^2-5t-150=0 \iff (t-15)(t+10)=0

    So we get t=15 or t=-10 since t=-10 doesn't make sense in the context of the problem we use t=15, or it will take them 15 months.

    Good luck.
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