题目信息
If x ≠ 1, is y equal to x + 1 ?
A:Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B:Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C:BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D:EACH statement ALONE is sufficient.
E:Statements (1) and (2) TOGETHER are NOT sufficient.
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正确答案：
A:Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Algebra Simplifying algebraic expressions
Determine if y = x + 1.
Given
= 1, then y − 2 = x − 1 and y = x + 1; SUFFICIENT.
Given y2 = (x + 1)2, then y = x + 1 or y = −(x + 1); NOT sufficient.
The correct answer is A;statement 1 alone is sufficient.
Determine if y = x + 1.
Given
= 1, then y − 2 = x − 1 and y = x + 1; SUFFICIENT.
Given y2 = (x + 1)2, then y = x + 1 or y = −(x + 1); NOT sufficient.The correct answer is A;statement 1 alone is sufficient.
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