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Question

Lines x – y = 0, x + y = 0 and X-axis are concurrent at:

A
A point in X-axis
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B
A point on Y-axis
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C
Origin
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D
Quadrant I
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Solution

The correct option is C Origin

Equations of the lines are:
x – y = 0 . . .(i)
x + y = 0 . . .(ii)

Solving (i) and (ii), we get x = 0, y = 0

So, both the lines are concurrent at the origin.

The equation of X-axis is y = 0

Thus, the lines x - y =0, x + y = 0 and the X axis meet at the origin.


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