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The lines y=mx, y+2x=0, y=2x+k and y+mx=...

The lines `y=mx, y+2x=0, y=2x+k` and `y+mx=k` form a rhombus if m is equal to :

A

-1

B

`(1)/(2)`

C

1

D

2

Text Solution

Verified by Experts

The correct Answer is:
D
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