Distance From a Point to a Line in R2 and R3

When QP is orthogonal to l, the distance from Q to the line is given by QP is orthogonal to I when QP d = 0 Distance from a Point to a Line in Example 2 Find the distance from the point Q (4, —1, 1) to the line l: x = 1 + 2t —1 + t, t e IR Solution Method 1 32 + + = = 1(3, — By the Pythagorean theorem, we get QP2 = poQ2 - or QP2 = - (202 ................
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