Glencoe Math: Course 2, Volume 1
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Exercise 8 Page 228

Absolute value will always be non-negative.

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Practice makes perfect

Let's begin by recalling the definition of the absolute value.

Absolute Value of a Number

It is a distance between the number and 0 on a number line.

In other words, the absolute value of a number is the non-negative value of that number. The absolute value of a number a can be written as |a|. |a| = a and |- a| = a Let's find the absolute values of the given numbers and simplify the expression.
|-5|-|-9|
5-|-9|
5-9
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