The Vector Equation of Lines | Multivariable Calculus

We've likely seen lines in 2D before, but how do we describe lines in 3 or more dimensions? In this video we will come up with a vector equation of lines that nicely generalizes what we've seen before in 2D. Effectively, to come up with an equation of a line you need two pieces of information, a point on the line and a direction vector along the line.

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