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Find the distance between any two numbers using absolute value.
In this video, we think about what |a-b| really means, and we verify that |a-b| = |b-a| by looking at an example.
Practice taking the absolute value of the difference of two numbers to find the distance between those numbers. Apply this principle to solve word problems.
In this video, we work through a bunch of examples that stretch our thinking on absolute value.
Solve conceptually challenging absolute value problems. In order succeed at these problems, you'll need to remember that the absolute value of the difference of two numbers is the distance between those numbers.
This is a more formal justification for why |a - b| = |b - a| than we saw in previous videos.