Problem Find the distance from the point A(1, 5, -3) to the plane 4x + y + 8z + 33 = 0.

Answer Key

Solution

$d = \left| \dfrac{4(1) + 1(5) + 8(-3) + 33}{\sqrt{4^2 + 1^2 + 8^2}} \right|$

$d = 2 ~ \text{units}$ ← Answer: [ B ]

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