On the third week of precalculus, we began a new unit on absolute value. Absolute value is the principal square root of a number, and it is the distance of the number from zero.

The absolute value of | -7 | and | 7 | are both 7.

Example: -| 5-9×3 | *remember to use BEDMAS

-| 5-9×3 |= -| 5-27 |= -| -22 |= -(22)= -22

1) use bedmas to find the number inside the absolute value symbol.

2) multiply 9 and 3 which equals to 27

3) take 27 away from 5, leaving -22

4) square -22 and then square root it, leaving 22

5) because there is a negative sign infront of the absolute value symbol, the answer will be -22