MathDB
Transformations of (1,2,3)

Source:

November 15, 2005
rotationanalytic geometrygeometrygeometric transformationreflectionlinear algebramatrix

Problem Statement

The point P \equal{} (1,2,3) is reflected in the xy xy-plane, then its image Q Q is rotated by 180∘ 180^\circ about the x x-axis to produce R R, and finally, R R is translated by 5 units in the positive-y y direction to produce S S. What are the coordinates of S S? (A)\ (1,7, \minus{} 3) \qquad (B)\ ( \minus{} 1,7, \minus{} 3) \qquad (C)\ ( \minus{} 1, \minus{} 2,8) \qquad (D)\ ( \minus{} 1,3,3) \qquad (E)\ (1,3,3)