A) \[x+y=-1\]
B) \[x+y=3\]
C) \[x+2y=5\]
D) \[2x+y=4\]
Correct Answer: D
Solution :
Since, \[P(1,\,\,2)\] is the midpoint of a line \[AB\], therefore coordinates of \[A\] and \[B\] are \[(2,\,\,0)\] and\[(0,\,\,4)\]. \[\therefore \]Equation of line\[AB\]is \[y-0=\frac{4-0}{0-2}(x-2)\] \[\Rightarrow \] \[y=-2x+4\] \[\Rightarrow \] \[2x+y=4\]You need to login to perform this action.
You will be redirected in
3 sec