1. Absolute Value and Opposites
Algebra 1 Unit 2: Real Numbers

2. Absolute Value
Absolute value means the distance away from zero on a number line.
Will distance ever be negative?
An absolute value function will never be negative.

3. Absolute Values Evaluate the following absolute value expressions.
│5 + 4│
3 – │4 – 9 │
│- 5 – 11 │
- │7 – 22 │

4. Opposites Every number has an opposite.
On the number line, a number and it’s opposite are OPPOSITE each other.
They are the same distance from zero, but they are on opposite sides of the number line.

5. Opposites
Example of opposites:

6. Opposites
An opposite can be found by multiplying the ENTIRE EXPRESSION by -1.
What is the opposite of the following numbers? 9 -3
4.25
-.5