A) \[2x-9y-7=0\]
B) \[2x-9y-11=0\]
C) \[2x+9y-11=0\]
D) \[2x+9y+7=0\]
Correct Answer: D
Solution :
S = midpoint of \[QR=\left( \frac{6+7}{2},\,\frac{-1+3}{2} \right)=\left( \frac{13}{2},\,1 \right)\] \ ?m? of \[PS=\frac{2-1}{2-\frac{13}{2}}=-\frac{2}{9}\], \ The required equation is \[y+1=\frac{-2}{9}(x-1)\] i.e.,\[2x+9y+7=0\].You need to login to perform this action.
You will be redirected in
3 sec