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BCECE Engineering BCECE Engineering Solved Paper-2009

  • question_answer
    An equation of a line through the point (1, 2) whose distance from the point (3, 1) has the greatest value is

    A) \[y=2x\]                              

    B)  \[y=x+1\]

    C)  \[x+2y=5\]        

    D)         \[y=3x-1\]

    Correct Answer: A

    Solution :

    Equation of any line through (1, 2) is \[y-2=m(x-1)\]                 \[\Rightarrow \]               \[y-mx+m-2=0\] The distance of line \[y=2x\]from the point (3, 1) is greatest. \[\therefore \]Required line in \[y=2x.\]


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