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1. Classify each statement below as correct (C) or incorrect (I).
If two lines in the same plane do not intersect, the lines must be parallel. ______
If two lines in space do not intersect, the lines must be parallel. ______
If two lines are parallel, the lines must lie in the same plane. ______
2. Line m is shown in the coordinate plane to the right.
Which is the best definition of line segment ST?
A. all points on line m
B. the two points S and T
C. point S, point T, and all points on line m between S and T
D. the points on line m starting at point T and extending beyond point S
