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  5. Linear Equations in Two Variables

9th Class Mathematics Linear Equations in Two Variables Question Bank Linear Equations in Two Variables

  • question_answer
    The point (a, - a) always lies on____.

    A) \[~x+y=0\]                  

    B) \[~x-y=0\]       

    C) \[~x=-a\]                     

    D)        \[~y=a\]          

    Correct Answer: A

    Solution :

    In \[x+y=0\]put \[x=a,\]we get \[a+y=0\Rightarrow y=-a\] So, \[(a,-a)\]always satisfy\[x+y=0.\]


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