Solve using elimination.
A. x = , y =
; x = -
, y =
; x = ,
, y = -
; x = -
, y = -
or (,
), (-
,
), (
, -
), (-
, -
)
B. x = , y =
; x = ,
, y = -
;
or (,
), (
, -
)
C. x = , y =
; x = -
, y =
; x = ,
, y = -
; x = -
, y = -
or (,
), (-
,
), (
, -
), (-
, -
)
D. x = - , y =
; x = -
, y = -
or (- ,
), (-
, -
)
Answer: A
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