Big Ideas Math Integrated I, 2016
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Big Ideas Math Integrated I, 2016 View details
4. Solving Absolute Value Equations
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Exercise 1 Page 28

How many cases do you have after you remove the absolute value?

Solutions: x= 10 and x=- 10
Number Line:

Practice makes perfect
An absolute value measures an expression's distance from a midpoint on a number line. |x|= 10

This equation means that the distance is 10, either in the positive direction or the negative direction. |x|= 10 ⇒ lx= 10 x= -10 Both 10 and - 10 are solutions to the absolute value equation. Let's graph these solutions on a number line.