Find a vector equation and parametric equations for the line segment that joins $P$ to $Q$. Here $P(1,-1,7)$ and $Q(7,5,1)$.
I have tried to find $r(t)$ by using the formula $r(t)=p+t(p-q)$ but it is wrong. I am making a stupid mistake.
2026-04-04 04:57:48.1775278668
Find a vector equation and parametric equations for the line segment that joins $P$ to $Q$.
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