Unit 5 Post Assessment Reviewer

Two friends are racing in an open space. The relationship between the distance in miles, d, and the time in hours, t, for each is shown. When compared to Person A, Person B travels at ​ (a)   .

• the same rate
• a slower rate
• a faster rate

Tags

CCSS.8.F.B.4

CCSS.8.F.A.3

CCSS.8.F.A.2

CCSS.8.EE.B.5

CCSS.8.EE.B.6

Mara and Clara are both saving their daily allowance to buy a gift to their mother. Mara's savings is modeled by an equation while Clara's is shown as a graph. Which of the statements below is true?

• The rate of change of Mara's savings over time is 2 dollars more than Clara's.

• The rate of change of Mara's savings over time is 2 dollars less than Clara's.

• The rate of change of Mara's savings over time is 5 dollars more than Clara's.

• The rate of change of Mara's savings over time is 5 dollars less than Clara's.

Tags

CCSS.8.F.A.2

CCSS.8.F.A.3

CCSS.8.SP.A.3

Which of the following relations represent a linear function?

• 
• 

Tags

CCSS.8.F.A.3

CCSS.8.F.A.1

Justin and Raymond are both running a dog-sitting business. Justin charges a flat service fee of 10 dollars plus an additional 2 dollars per dog. Raymond's fees are shown as pictured. Which conclusion can be made about their total service fees?

• Justin has a lower charge per dog than Raymond.

• Justin has a higher charge per dog than Raymond.

• Justin and Raymond both charge the same amount per dog.

• Raymond has a higher flat service fee than Justin.

Tags

CCSS.8.F.B.4

CCSS.8.F.A.2

Which situation can be best represented by this graph?

• Lina was walking at a constant speed going to school.

• A jogger was running at a steady rate, switched to walking to pick up trash he passed by, and picked up a faster pace than the beginning.

• A cup with a hole was losing water at a constant rate.

• A container was being filled rapidly, filled to the brim, and then started draining

Tags

CCSS.8.F.B.5

• The candle was initially 40 inches long.

• The candle will completely be melted in 40 minutes.

• The candle will be 32 inches in 8 minutes.

Tags

CCSS.8.F.B.4

CCSS.8.F.A.3

CCSS.8.F.B.5

CCSS.8.F.A.1

Points are said to be collinear with they are contained in the same line. Which set contains 3 points which are ALL collinear?

Tags

CCSS.8.F.A.2

CCSS.8.F.A.3

A water tank shaped like a cylinder has a diameter of 42 inches. If it can hold about 55418 cubic inches (about 240 gallons) of water, what is the approximate height of the tank?

• 30 inches
• 45 inches
• 50 inches
• 40 inches

Tags

CCSS.8.G.C.9

Which of the following statements is correct?

• Function 2 has a greater rate of change than Function 3.

• Function 3 has a greater rate of change than Function 4.

• Function 1 has a lower rate of change than Function 3.

• Function 4 has a higher rate of change than Function 1.

Tags

CCSS.8.F.A.2

The equation T=0.5s+92 can be used to determine T, the temperature in degrees, inside an incinerator s seconds after the incinerator is turned on. Which statement relative to this equation is true?

• Each second the temperature increases by 92 degrees.

• Each second the temperature increases by 92.5 degrees.

• The temperature inside the incinerator will be 77 degrees after 10 seconds.

• The temperature inside the incinerator was 92 degrees at the beginning.

Tags

CCSS.8.F.B.4

CCSS.8.SP.A.3