A) parallel lines
B) coincident lines
C) intersecting lines which are perpendicular
D) intersecting lines but not perpendicular
Correct Answer: C
Solution :
| [c] \[x=1\] represents a line parallel to y-axis at a distance of 1 unit from y-axis and \[y=1\] represents a line parallel to x-axis at a distance of 1 unit from x-axis. |
| \[\therefore \]The pair of equations intersect each other at \[(1,1)\] and are perpendicular, |
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