GWD0-34

[邁向高等學府]

Q34:
If Line k in the xy-plane has equation y = mx + b, where m and b are constants, what is
the slope of k?
(1) k is parallel to the line with equation y = (1-m)x + b +1.
(2) k intersects the line with equation y = 2x + 3 at the point (2, 7).
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.
笒案為a,
intersect是指垂直相交嗎？
我記得兩條直線相交，其鈄率相乘等於一，這樣(2)不是可以求算出解嗎？
謝謝！

[Pufa]

intersect指相交而不是垂直相交。
所以囉^^