Question

Point $D$ has coordinates as $(3,4,5)$. Referring to the given figure, find the coordinates of point $E$.

• A. $(0,4,3)$
• B. $(0,4,5)$
• C. $(0,5,4)$
• D. $(0,3,4)$

Answer 1

The correct option is B $(0,4,5)$

Point D has coordinates $(3,4,5)$

Point E is in line with D, lying on the y-z plane having x coordinate 0, such that line DE is perpendicular to the y-z plane.

Thus, the y and coordinates of point E remain same as that of D.

The coordinates of point E are therefore $(0,4,5)$