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Math Help - Inequality Problem

  1. #1
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    Inequality Problem

    The elements of an electric circuit dissipate p watts of power. The power p_R dissipated by a resistor in the circuit is given by p_R=Ri^2, where R is the resistance (in Ohms) and i is the current (in A). Graph the possible values of p and i for p>p_R and R=.5 Ohms
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  2. #2
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    p>p_R
    <br />
p_R = Ri^2
    <br />
p>Ri^2

    Can you graph it now?
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  3. #3
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    So p_R = Ri^2\quad \Rightarrow y=.5x^2

    And p>p_R\quad \Rightarrow y=.5x

    Are those right?
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  4. #4
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    What you are trying to do is to graph p against i and find the region that satisfies the properties p>p_R and p_R = .5i^2

    p>p_R and  p_R = Ri^2 => p>Ri^2
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