Understanding Number Line Concepts

The video tutorial explains how to plot numbers on a number line, using examples of negative and positive numbers. It demonstrates the process of adjusting the scale on an interactive number line to accurately represent numbers like -75 and +8. The tutorial emphasizes understanding the representation of gains and losses through positive and negative integers.

What number best represents Dave's loss in the lottery?

• 75

• -75

• 0

• 100

Where is negative 75 located on the number line?

• At zero

• 75 units to the right of zero

• 75 units to the left of zero

• 50 units to the left of zero

What scale adjustment is needed to make negative 75 visible on the number line?

• Change scale to 25

• Change scale to 5

• Change scale to 10

• Change scale to 50

How is Jason's weight gain represented on the number line?

• 10

• 0

• 8

• -8

If Jason had lost eight pounds, which number would represent this on the number line?

• 8

• 16

• -8

• 0

Where is positive 8 located on the number line?

• 8 units to the left of zero

• 10 units to the right of zero

• At zero

• 8 units to the right of zero

What scale adjustment is needed to make positive 8 visible on the number line?

• Change scale to 1

• Change scale to 2

• Change scale to 5

• Change scale to 10