a Find a parametric equation for the line through the point 1 4 6 and in the direction of ai bj ck F t b Find conditions on a b c so that the line you found in part a goes through the origin Be sure you can give a reason for your answer Then use your work to give two distinct triples a b c tham result in the line passing through the origin Choice 1 a b Choice 2 a b 1 c