Understanding Absolute Values and Comparisons

The video tutorial covers rational numbers, absolute values, and how to order them. Students learn to graph rational numbers on a number line, find their absolute values, and compare them. The lesson includes definitions, examples, and a word problem to apply the concepts.

What is the main focus of today's lesson?

• Studying algebraic expressions

• Learning about complex numbers

• Understanding rational numbers and absolute values

• Graphing irrational numbers

What does the absolute value of a number represent?

• The square of the number

• The negative of the number

• The distance from zero on a number line

• The number itself

How is the absolute value of a number written in mathematical symbols?

• Using two vertical lines

• Using square brackets

• Using curly braces

• Using parentheses

What is the absolute value of -4?

• 8

• -4

• 0

• 4

If a number is 8 units away from zero on a number line, what is its absolute value?

• 4

• 0

• -8

• 8

What is the absolute value of 1 and 1/4?

• 1/4

• 0

• 1

• 1.25

What is the absolute value of -5/3?

• -5/3

• 5/3

• 0

• 1/3

What is the absolute value of -2.6?

• 1.3

• -2.6

• 2.6

• 0

When comparing absolute values, which symbol is used to indicate one value is greater than another?

• ≤

• >

• <

• =

Which is greater: the absolute value of -2.5 or 3/2?

• They are equal

• 3/2

• Absolute value of -2.5

• Cannot be determined