EXAMPLE Graphing with a Number Line

The video tutorial covers three main topics: identifying and naming coordinates on a graph, graphing negative and decimal numbers, and understanding the concept of absolute value. The teacher uses examples to illustrate each concept, ensuring students grasp the basics of graphing and the transformation of negative numbers into positive through absolute value.

What is the coordinate of a point that is halfway between 2 and 3 on a number line?

• 2.5

• 1.5

• 4.5

• 3.5

When plotting the number -4 on a number line, which direction should you move from zero?

• Up

• Left

• Down

• Right

How would you represent the number 3.7 on a number line?

• Just before 3

• Just after 3

• Just after 4

• Just before 4

What does the absolute value of a number do?

• Turns the number negative

• Removes the negative sign

• Adds 1 to the number

• Doubles the number

If the absolute value of -2 is taken, what is the result?

• -2

• 0

• 2

• 4