How many cases do you have after you remove the absolute value?
0,- 4
Practice makes perfect
An absolute value measures an expression's distance from a midpoint on a number line.
|r+2|= 2This equation means that the distance is 2, either in the positive direction or the negative direction.
|r+2|= 2 ⇒ lr+2= 2 r+2= - 2
To find the solutions to the absolute value equation, we need to solve both of these cases for r.
