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Find the Intersection of the Planes

Question 41

Multiple Choice

Find the intersection of the planes. -7x - 4y - 8z = -123 and 6x - 8y - 4z = 42

A) x = 9 - 80t, y = -3 + 20t, z = 9 - 32t
B) x = 80t, y = -20t, z = 32t
C) x = 9 - 48t, y = -3 - 76t, z = 9 + 80t
D) The planes are parallel.

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