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

  • question_answer
    Line passing through (1, 2) and (2, 5) is                       [RPET 1995]

    A)            \[3x-y+1=0\]                          

    B)            \[3x+y+1=0\]

    C)            \[y-3x+1=0\]                          

    D)            \[3x+y-1=0\]

    Correct Answer: C

    Solution :

               Required equation is \[y-2=\frac{5-2}{2-1}(x-1)\Rightarrow y-3x+1=0\].


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