The point (a, - a) always lies on____.

1.	The point (a, - a) always lies on____.
A.	\[~x+y=0\]
B.	\[~x-y=0\]
C.	\[~x=-a\]
D.	\[~y=a\]
Answer» B. \[~x-y=0\]

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The point (a, - a) always lies on____.

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