Question 1301a

Vectors II: Lines and Planes

Vector Equation of a Line I

Question

Find the equation of the line passing through the points

{P \left( - 2, 1, 4 \right)}

and

{Q \left( - 1, 0, - 1 \right).}

{l: }

{\mathbf{r}=\mathbf{a}+\lambda\mathbf{d}, \; \lambda \in \mathbb{R}.}

{\mathbf{a}=}

{\Biggl(}

{\Biggr), \quad}

{\mathbf{d}=}

{\Biggl(}

{\Biggr)}