Let C is the line segment from (0,0) to (2, 1). Then foydx + xdy is 2 1 0 None of the above.

The point mid ay between (a, b) and (c, d) _____________. So the point midway between (1, 2) and (7, 10) is ___________.

The distance between the points (a, b) and (c, d) is ___________. So the distance between (1, 2) and (7, 10) is __________ .

Let all of the lines named be coplanar. Make a drawing to reach a conclusion. a If rs and st, then _. b If ab and bc, then _.