so what we really have to do is pick a t that gives us the point given? so in this case the point ( 1, 3, 3) is given or found by plugging in t = 0 into the parametric equations?
i think that makes since now
thanks very much
im a bit lost now. i get the general idea but what about this one:
x = cos t, y = 3e^(2t), z = 3e^(-2t) and the point is (1, 3, 3)
in this case t is supposed to be 0, but z does not equal 1 when t is 0
so how do they come up with that?? And also x would be 1, y would be 3.