Distance of the point (α, β, y) is:
A. β B. |β| C. |β| + |y| D. √(α² + y²)
Drawing a perpendicular from (α, β, y) to the y-axis gives us a foot of perpendicular with coordinates (0, β, 0).
Also, using the distance formula, we can calculate the distance between two points as:
Thus, the required distance
(Option D)