Julie is correct because LxWxH only applies to 2 dimensional shapes so therefore you need to use x to the power of 3 formula
The rule for the reflection is (x,y,z) → (-x,y,z) so P' = (1, 2, 0) for example.
<span>Then the rule is (x,y,z) → (x + 2, y + 4, z - 3) so P'' = (3, 6, -3) </span>
