Question
Find parametric equations for the lines.\begin{equation}\begin{array}{l}{\text { The line through } P(1,2,0) \text { and } Q(1,1,-1)} \end{array}\end{equation}
Step 1
The direction vector of a line passing through two points P and Q is given by Q - P. Here, P(1,2,0) and Q(1,1,-1). So, the direction vector is Q - P = (1-1, 1-2, -1-0) = (0, -1, -1). Show more…
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