Question

Determine two sets of parametric equations for the line passing through the points P(1,7,1) and Q(3,4,4)
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I got one of them but I don't know how to get a second parametric equation.


first one: x=1-2s, y=7+3s, z=1-3s

second:???

Answer 1

why not use the other point?

x = 3 - 2x
y = 4 + 3s
z = 4 - 3s

Answer 2

I was thinking about that, ha~ but thought it would be wrong.

Thanks!