A) \[2:1\]
B) \[1:2\]
C) \[-2:1\]
D) \[1:-2\]
Correct Answer: A
Solution :
[a] Let the X-axis divides the join of \[A(3,6)\]and \[B(12,-3)\]in the ratio \[k:1\] |
\[\therefore \,\,\,\,\,\,\,\,\,\,\,\,\frac{-3k+6}{k+1}=0\] [Ordinate must be 0] |
\[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,k=\frac{-6}{-3}\,\,\,\Rightarrow \,k=\frac{2}{1}\] i.e., \[2:1\] |
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