How many cases do we have after we remove the absolute value?
Solutions: x=13 and x=- 13 Number Line:
Practice makes perfect
An absolute value measures an expression's distance from a midpoint on a number line.
|x|= 13This equation means that the distance is 13, either in the positive direction or the negative direction.
|x|= 13 ⇒ lx= 13 x= - 13
Both 13 and - 13 are solutions to the absolute value equation. Let's graph these solutions on a number line.