Understanding Absolute Value and Opposites

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 finding the absolute value of temperatures.

What are the two main questions addressed in the video?

• How to convert fractions to decimals

• How to add and subtract rational numbers

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

• How to multiply rational numbers and how to divide them

What is the opposite of a negative rational number?

• Zero

• A fraction

• Another negative rational number

• A positive rational number

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

• 7

• -7

• 0

• -5

What does the absolute value of a number represent?

• The number itself

• The number squared

• The distance from zero on the number line

• The opposite of the number

Why is the absolute value always non-negative?

• Because it represents a direction

• Because it is a distance, which cannot be negative

• Because it is always a fraction

• Because it is always a whole number

In the stock value example, what was the change in value for Wednesday?

• Negative four and a quarter

• Zero

• Negative five

• Positive four and a quarter

What is the opposite of negative four and a quarter?

• Negative four and a quarter

• Positive five

• Positive four and a quarter

• Zero

What was the average January low temperature in 2009?

• Positive 5.4

• Zero

• Negative 5.4

• Negative 6

How do you find the absolute value of negative 5.4?

• By adding 5.4 to zero

• By taking the positive value of 5.4

• By subtracting 5.4 from zero

• By multiplying 5.4 by two

What is the absolute value of negative 5.4?

• Positive 6

• Negative 5.4

• Zero

• Positive 5.4