Question: Determine whether each point lies in the plane. x + 2y 4z 1 = 0 (a) (7, 2, 1) (b) (5, 2, 2)

Determine whether each point lies in the plane.

x + 2y − 4z − 1 = 0

(a) (−7, 2, −1)

(b) (5, 2, 2)

(c) (−6, 1, −1)

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