Question:
The image of the point (1 3 4) in the plane 2x − y + z + 3 = 0 is
The image of the point (1 3 4) in the plane 2x − y + z + 3 = 0 is
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To find the image of a point, use the formula for the reflection of a point across a plane and calculate the corresponding coordinates
Updated On: Feb 11, 2026
- (3 -2 1)
- (-3 5 2)
- (3 2 5)
- (5 1 6)
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The Correct Option is B
Solution and Explanation
The reflection of a point across a plane can be found by determining the foot of the perpendicular from the point to the plane and then doubling that distance to find the reflected point. The correct image point is (−3, 5, 2).
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