Homework Help: geometry

Posted by steffi on Wednesday, July 20, 2011 at 10:37am.

The points A(3;1), B(1;-2) and C(2;3) in a cartesian plane are given.

If CD is parallel to AD with D(t/3;t+1) determine the value of t

geometry - bobpursley, Wednesday, July 20, 2011 at 10:43am
slope of cd=slopeof ad

(3-(t+1))/(2-t/3) = (1-(t+1))/(3-t/3)

check that, solve for t.
geometry - M, Thursday, July 21, 2011 at 10:13pm
If CD is parallel to AD, then CD meets AD at D. But parallel lines never meet!

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