Absolute Value as Distance
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
The expression |x − a| measures the distance between x and a on the number line; distance statements become absolute value statements.
Show
A machined part passes when its width sits within 3 of the 7-unit target: |x − 7| ≤ 3, every acceptable width in five symbols.
Builds on
- Nothing — this is a starting point.
Unlocks
- Nothing yet depends on this.