Question

In the XYZ coordinate system, what is an equation of the set of all points in space equidistant from points A(1, 1, 3) and B(1, 2, 3)?

A. x=1
B. Y=1/2
C. y=1
D. y=3/2
E. z=3

Answer 1

D

Step-by-step explanation:

Note that the X and Z are the same, so it must be Y=some value.

The plane that works must pass through the midpoint, or (1, 3/2, 3), giving D or y=3/2.