First slide

Planes in 3D

Question

For the plane $Π$ = 2x + 3y + 5z + 10 = 0, the point (1, 2, -3) lie in the

Easy

A

origin side
B

opposite to the origin side
C

plane
D

cannot be decided

Solution

$π = 2 x + 3 y + 5 z + 10 = 0$
(1,2,-3)

$π_{11} = 2 + 6 - 15 + 10 > 0$

Origin side

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