Unit 7 Review

The shaded region on the grid below shows the area that underwater explorers have already explored in looking for sunken treasure.

Which point on the grid have they NOT explored

• (-5,2)

• (0,0)

• (4,3)

• (-2,4)

Henry graphed the three ordered pairs shown in the table below. Six points are graphed on the coordinate plane. Which three points graphed on the coordinate plane show the locations of the three ordered pairs int he table?

• C, B, R

• E, F, B

• E, C, A

• F, C, A

Each of the following phrases describes a numerical value:

· The absolute value of 4

· The opposite of 4

Explain the relationship between the two numbers

• The opposite of 4 is equal to the absolute value of 4.

• The absolute value of 4 is less than the opposite of 4.

• The opposite of 4 is the same distance from 0 on a number line as the absolute value of 4.

• The absolute value of 4 is farther from 0 on a number line than the opposite of 4.

Which the following statements is true?

• 0.75 < 0.75²

• I-8I < -3

• $-\frac{3}{8}<\ \left|-0.5\right|$

• $-2\frac{3}{5}\ge1.5$

Makayla was comparing the rainfall, in inches, for three cities during the month of March.

· Atlanta (A) had a decrease of 0.5 inches from the prior year.

· Louisville (L) was 2.5 inches higher than the prior year.

· Denver (D) had 2.3 inches less than the prior year.

Which number line reflects the changes in rainfall for each city?

• 
• 
• 
• 

The bottom of a swimming pool is 15 feet below the surface of the water in the pool. The surface of the water is represented by the number 0, and the bottom of the pool is represented by the number -15. The pool’s diving board is the same distance above the surface of the water as the bottom of the pool is below the surface of the water. What number represents the location of the diving board?

• 0

• 15

• 30

• $\frac{1}{15}$

Look at the coordinate grid. Points R and S will be added to the grid to form rectangle PQRS with an area of 24 square units. Which ordered pairs could be the coordinates of points R and S?

• (1,7) and (5,7)

• (1,-1) and (5,-1)

• (1,-4) and (5,-4)

• (1,-3) and (5,-3)

The diagram shows the locations of Danielle’s house (B), a store (C), and a playground (F). Each unit on the grid represents 1 kilometer. Use the diagram to to help you answer the following question: Find the distance between Danielle’s house and the store.

• 3

• 5

• 4

• 6

Use the coordinate grid to help you. In which quadrant is (-3,1) located?

• 1

• 2

• 3

• 4

Using the coordinate grid. If you reflected the coordinate (-3,-3) over the x-axis, which point below would be the resulting coordinates?

• (3,3)

• (-3,3)

• (-3,-3)

• (3,-3)