How do you use absolute value to find the distance between two points that have the same x-coordinates but different y-coordinates?

How do you use absolute value to find the distance between two points that have the same x-coordinates but different y-coordinates?
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Alix Ortiz
If the points have the same x-coordinates but different yy-coordinates, then they lie on a vertical segment. So, we find the absolute value of the difference of the yy-coordinates. The order of subtraction is not important since we will take its absolute value. For example, the distance between $\left(0,1\right)\phantom{\rule{1em}{0ex}}\text{and}\phantom{\rule{1em}{0ex}}\left(0,-3\right)is\mid 1-\left(-3\right)\mid =\mid 4\mid =4\phantom{\rule{1em}{0ex}}\text{or}\phantom{\rule{1em}{0ex}}\mid -3-1\mid =\mid -4\mid =4$