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Math Help - distance from point to line

  1. #1
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    Post distance from point to line

    If the distance from P(6,-2) to the line 4x - 3y - k = 0 is 10 units, find k.


    wow im lost, thats all i can say
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  2. #2
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    If P(p,q) is a point l: Ax+By+C=0 is a line then the distance from P to l is:
     \frac{{\left| {Ap + Bq + C} \right|}}{{\sqrt {A^2  + B^2 } }}.
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