[問題]GWD05-20

[luluhsiao]

Lines k and m are parallel to each other. Is the slope of line k positive?
(1)Line k passes through the point (3, 2).
(2) Line m passes through the point (-3, 2).

答案是 E~~不懂為何?? 麻煩囉..

[JS]

u need two points to set a line and to know the slope.
Statement 1 give u 1 point of a line...... so no use here
statement 2 give another point for another line so...no good either.
2 together still no good.