If x and y are integers and x > 0, is y > 0?
(1) 7x – 2y > 0
(2) -y < x
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
代入法的时候不要忘记考虑-1,0,1这个区间。 郁闷
在x轴上的都不满足。。。