Study Guide: Unit 6a

Which point represents the opposite of 2 ¼?

• A

• B

• C

• D

What number is the opposite of the opposite of 6.25?

When Tariq woke up this morning, the temperature was 0 degrees. The temperature rose to 23 degrees in the afternoon. The temperature decreased in the evening, and it was 11 degrees when Tariq went to bed. Which integer represents the temperature when Tariq went to bed?

• -12

• -11

• 11

• 12

Determine whether each statement is true or false.

• True

  True

  False

  True

• True

  True

  True

  True

• False

  False

  False

  False

• False

  True

  False

  True

Determine whether each situation is represented by 5 of -5.

• -5

  5

  5

  -5

• -5

  -5

  5

  -5

• -5

  5

  -5

  -5

• 5

  -5

  -5

  5

Determine whether each statement about the points on the number line is true or false.

• False

  True

  False

  True

• True

  False

  True

  False

• False

  True

  True

  False

• True

  True

  False

  True

Ms. Davis measures the depth of the water in the city pool each day. The pool is considered full at 0 in. She compares her measurements to the height of the water when the pool is considered full and records the change in depth in a table. The depth of the water increased between ​ (a)   because ​ (b)   on a number line.

• Monday and Tuesday
• -1.4 is to the right of -1.6
• Tuesday and Wednesday
• Wednesday and Thursday
• -1.4 is to the left of -1.6
• -1.7 is to the left of -1.4
• -1.9 is to the right of -1.7

How do the values of points P and Q compare? 

Point P is to the left of point Q, so the value of point P is ​ ​ (a)   the value of point Q. 

Two inequalities that correctly compare the two points are -⅚ ​ (b)   4/6 and 4/6 ​ (c)   -⅚. 

• less than
• <
• >
• greater than

In Mr. Dara’s class, students play a game in which they gain 1 point for a correct answer and lose 1 point for an incorrect answer. A score of -6 is lower than a score of -2. A score of -2 is higher than a score of -4. Which set of inequalities express these relationships?

• -6 < -2 and -2 < -4

• -6 < -2 and -2 > -4

• -6 > -2 and -2 < -4

• -6 > -2 and -2 > -4

The table shows the low temperatures, in degrees Celsius, for five cities on the first day of January. The low temperature in Springfield was -2.8 degrees that same day. Determine whether each city had a lower temperature than the temperature in Springfield.

• No

  Yes

  No

  Yes

  No

• Yes

  No

  Yes

  No

  Yes

• No

  No

  Yes

  Yes

  No

• Yes

  Yes

  No

  No

  Yes