Question

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

Answer 1

Answer:

2 units

Question:

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

Step-by-step 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.