Understanding Absolute Value

The video tutorial explains the concept of absolute value, emphasizing that it represents the distance of a number from zero, which is always positive. It uses a diagram to illustrate this concept, showing how two people walking in opposite directions from a building are equidistant from it, similar to numbers on a number line. The tutorial provides examples of calculating absolute values for positive, negative, and zero values, clarifying that absolute value is about distance, not direction. It concludes by addressing common misconceptions, reinforcing the understanding of absolute value.

What is the absolute value of a number?

• The number itself

• The distance of the number from zero

• The negative of the number

• The square of the number

How is the absolute value of a number represented?

• With curly braces

• With vertical bars

• With square brackets

• With parentheses

In the diagram, if a person walks 20 meters to the right, what is their distance from the building?

• 10 meters

• 40 meters

• 30 meters

• 20 meters

What does the absolute value of -20 equal?

• -20

• 0

• 20

• 40

On a number line, what is the absolute value of 20?

• 20

• 0

• -20

• 40

What is the absolute value of 8?

• 16

• 8

• 0

• -8

What is the absolute value of -5?

• 10

• 0

• 5

• -5

What is the absolute value of 0?

• 2

• 0

• -1

• 1

What happens to a negative number when you take its absolute value?

• It becomes more negative

• It remains negative

• It becomes zero

• It becomes positive

Why is it important to understand the concept of absolute value?

• Because it represents a distance

• Because it changes the number's sign

• Because it is used in division

• Because it is used in multiplication