Question

Calculate the distance between (3 + i) and (3 − i).

Answer 1

2 units

Question:

Calculate the distance between (3 + i) and (3 − i).

Explanation:

This problem is equivalent to the problem:

"Calculate the distance between the points (3,1) and (3,-1)."

Since the
`x`-coordinates are the same, this is a vertical distance.

A vertical distance be be found by computing the positive difference of the
`y`-coordinates. In other words, we need only the find the distance between the numbers
`y=1` and
`y=-1` on a number line.

This distance is 1-(-1)=1+1=2 units.