Rational Numbers Positive and Negative

These four numbers are plotted on a number line. Which is the correct ordering on the number line, from left to right?

• 
• 
• 
• 

Given x = -2, what order would these expressions appear on the number line?

• -4, x, |-1.5|, -x, |5|, |-6|

• |-6|, -4, x, |-1.5|, -x, |5|

• |-6|, -4, -x, |-1.5|, x, |5|

Write an inequality to express the relationship between -2 and -5.

• -2 > -5

• -5 > -2

• -5 = -2

• -2 = -5

Starting at 7:00 a.m., Lin spent a day hiking through a canyon. This graph shows her elevation (in meters) at some different times. Negative values of x represent times earlier than noon, and positive values of x represent times later than noon. What was Lin’s elevation at noon?

• -2 meters

• 10 meters

• 3 meters

• -5 meters

Select ALL expressions whose value is negative.

• A

• B

• C

• D

• E

Two points are plotted on the number line shown. Which values are represented by the points on the number line? Select TWO correct answers.

• 3/5

• 0.3

• 2/5

• 70%

• 0.2

Looking at the image, what would represent a negative integer?

• Upstairs

• Main Level

• Basement

Starting at 7:00 a.m., Lin spent a day hiking through a canyon. This graph shows her elevation (in meters) at some different times. Negative values of x represent times earlier than noon, and positive values of x represent times later than noon. Did Lin’s elevation increase or decrease between 7:00 a.m. and 2:00 p.m?

• Lin’s elevation increased. Her elevation changed from -2 meters to 10 meters.

• Lin’s elevation decreased. Her elevation changed from 3 meters.

• Lin’s elevation decreased. Her elevation changed from 10 meters to -2 meters.

• Lin’s elevation increased. Her elevation changed from -5 meters to 2 meters.

Use the positive numbers to represent elevations above sea level and negative numbers to represent elevations below sea level. Mary's elevation is 6.5 meters at the beginning of a hiking trail. After walking a few minutes, she has descended 12.2 meters. Which of the following represents her new elevation?

• -18.7

• 5.7

• -6.3

• -5.7

Which of the following numbers is not like the others?
-3   6   0   0.23  -45

• -3

• 0

• 0.23

• -45