Absolute Value and Elevation Concepts

The video tutorial covers the concept of absolute value and its application in comparing numbers and distances from zero. It explains how to use a number line to plot rational numbers and their opposites. An activity involving a submarine's elevation is used to illustrate the concept of distance from sea level. The tutorial concludes with exercises on creating comparison statements using absolute values.

What is the absolute value of -4?

• 4

• 8

• 0

• -4

If a rational number is positive, what can be said about its negative?

• It is always positive

• It is zero

• It is always negative

• It is undefined

What is the opposite of -6?

• -12

• 0

• 6

• -6

If a submarine is at -100 ft, which elevation is farther from sea level?

• -150 ft

• 100 ft

• 0 ft

• -50 ft

Which elevation is closer to sea level than -100 ft?

• -50 ft

• 0 ft

• -150 ft

• -200 ft

What is the absolute value of -200 ft?

• 200 ft

• 0 ft

• 100 ft

• -200 ft

How does the elevation of 50 ft compare to sea level?

• Not comparable

• Less than

• Greater than

• Equal to

What is the absolute value of 100 ft?

• 200 ft

• -100 ft

• 0 ft

• 100 ft

Which statement is true about the absolute value of -8?

• It is 0

• It is -8

• It is undefined

• It is 8

What is the absolute value of a positive number?

• Zero

• Positive

• Negative

• Undefined