Identifying Opposites and Absolute Values of Rational Numbers

The video tutorial covers identifying opposites and absolute values of rational numbers. It explains that the opposite of a negative rational number is positive and vice versa. Absolute value is described as the distance from zero on a number line, always non-negative. Examples include graphing stock value changes and calculating the absolute value of temperatures.

What are the two essential questions discussed in the video?

• How to multiply and divide rational numbers

• How to solve equations involving rational numbers

• How to identify the opposite and absolute value of a rational number

• How to add and subtract rational numbers

What is the opposite of -3?

• 3

• 0

• 5

• -3

If the opposite of 5 is -5, what is the opposite of -7?

• 7

• -7

• 14

• 0

What does the absolute value of a number represent?

• Its distance from the lowest number

• Its distance from the highest number

• Its distance from one on the number line

• Its distance from zero on the number line

What is the absolute value of -4?

• 4

• -4

• 0

• 8

Where would you graph -4.25 on a number line?

• Between -3 and -4

• Between -2 and -3

• Between -4 and -5

• Between -5 and -6

What is the opposite of -4.25?

• -4.25

• 0

• 4.25

• 5

How was the change in stock value represented in the example?

• In halves

• In quarters

• In tenths

• In eighths

What was the average low temperature in January 2009?

• -3.4

• -6.4

• -5.4

• -4.5

What is the absolute value of -5.4?

• -5.4

• 6.4

• 0

• 5.4