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JEE Main & Advanced Mathematics Straight Line Question Bank Slope of line, Equation of line in different forms

  • question_answer
    The equation of the straight line joining the origin to the point of intersection of \[y-x+7=0\] and \[y+2x-2=0\] is [MP PET 2001]

    A)            \[3x+4y=0\]                            

    B)            \[3x-4y=0\]

    C)            \[4x-3y=0\]                              

    D)            \[4x+3y=0\]

    Correct Answer: D

    Solution :

               The intersection point of \[y-x+7=0\] and \[y+2x-2=0\] is \[(3,\,-4)\]                    \ Equation of straight line joining origin to \[(3,\,-4)\] is \[y-0=\frac{-4}{3}(x-0)\] Þ \[4x+3y=0\].


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