The price of a stock had a change of - 3 dollars.

Explain how you would use a number line to find the absolute value of - 3

The absolute value of - 3 is - 3

The absolute value of - 3 is 3. You can use a number line to determine this by remembering what absolute value is. Absolute value is the distance a number is from zero. By knowing that, you can put a number on a number line and count the number's distance from zero.