Unit 3 Review

Presentation

•

Mathematics

•

8th - 9th Grade

•

Hard

•

CCSS

7.RP.A.2D, 6.RP.A.1, 7.RP.A.2

+10

Standards-aligned

Queamani Mickens

Used 3+ times

FREE Resource

10 Slides • 36 Questions

Unit 3 Review

Poll

Did you complete the Question of the Day?

Yes

How do I complete the Question of the day?

Poll

Stress Check

I'm in a good space & can focus.😁

Something is bothering me, but I can still focus.😏

I can't manage my emotions or behaviors right now.😩

Open Ended

Type 2 things you learned about unit rate as slope, representing proportional relationships, or direct variation.

Type response here

Unit Rate as Slope

Multiple Choice

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

$8 per pound

$5 per pound

$35 per pound

0.125 pounds per dollar

Multiple Choice

Dev keeps a record in graph form of how far his car travels and the number of gallons of gasoline it uses.

What is the unit rate of the graph?

128

Multiple Choice

If Justin can type 408 words in 4 minutes, how many words can he type per minute?

102 words per minute

100 words per minute

400 words per minute

412 words per minute

Multiple Choice

What is Joseph's unit rate?

1/8 mile per hour

8 miles per hour

8 hours per mile

1/8 hour per mile

Multiple Choice

Which of the following is a UNIT RATE?

10 miles / 2 hours

$6 for each hour

1 box / $3

15 pounds every 5 servings

Multiple Choice

A unit rate is a ratio in fraction form that has a _____________________________ of 1.

numerator

bottom number

fraction

denominator

Multiple Choice

What is the rate of change for the following graph?

160

Multiple Choice

Taylor can write 6 words per minute

Taylor can write 25 words per minute

Taylor can write 50 words per minute

Taylor can write 150 words per minute

Multiple Choice

Which rate of change represents the following the graph shown?

$ 5 per movie

$10 per movie

$1 per movie

$0.20 per movie

Multiple Choice

At what rate did the rain fall?

2 cm per hour

¹/₄ cm per hour

¹/₂ cm per hour

4 cm per hour

Representing Proportional Relationships

Multiple Choice

What is the formula for a proportional relationship?

y=kx

y=k/x

k=kx

y=ky

Multiple Choice

How do you find k?

x/y

y/x

y=kx

x ⋅ y

Multiple Choice

Which graph is non-proportional?

Multiple Choice

Write an equation for this relationship.

y = 18x

y = 18.50x

y = 22.50x

y = 22x

Multiple Choice

What does the point (2, 94) represent in this situation?

Every week, they earn $94.

After 94 weeks, they save $2.

After 1 week, they save $47.

After 2 weeks, they save $94.

Multiple Choice

The constant of proportionality can be found by finding the __________ _____________.

unit rate

ratio rate

proportion answer

rational number

Multiple Choice

The graph above shows the price of games in dollars. Is the graph proportional and how do you know?

The graph is proportional because it is linear.

The graph is proportional because it is linear and passes through the origin.

The graph is not proportional because it does not pass through the origin.

The graph is not proportional because it is not linear and it does not pass through the origin.

Multiple Choice

Does this graph represent a proportional relationship?

Yes

Multiple Choice

Does the table represent a proportional relationship?

Yes.

No.

Multiple Choice

Using the graph above, determine the constant of proportionality.

k = 0

k = 1

k = 3

k = 6

Multiple Choice

The number of trees and the number of apples are given in the table above. Determine which statement below is correct.

The table is not proportional because the unit rate is not constant.

The table is proportional and the unit rate is 1/13

The table is proportional and the unit rate is 13.

The table is not proportional because it doesn't pass through the origin.

Multiple Choice

Does this graph represent a proportional relationship?

Yes

Multiple Choice

Does the table represent a proportional relationship?

Yes.

No.

Direct Variation

Multiple Choice

Is this a direct variation? y =2x + 1

Yes

Multiple Choice

Is this proportional?
y=2x

yes

Multiple Choice

What is another name for k?

y- intercept

slope

x- intercept

Multiple Choice

Which of the given graphs is a direct variation?

Multiple Choice

Libby's two hamsters eat 1 cup of food per week. Assuming the amount of food eaten varies directly with the number of hamsters, how much food would 7 hamsters eat?

3.5 cups

3 cups

7 cups

1 cup

Multiple Choice

The number of kilograms of water in a person’s body varies directly as the person’s mass. A person with a mass of 90 kg contains 60 kg of water. How many kilograms of water are in a person whose mass is 75 kg?

50 kg water

72 kg water

94 kg water

150 kg water

Multiple Choice

y varies directly with x. When y = 39, x = 3. Find the value of y when x = 2.

58.5

Multiple Choice

Is the given table a direct variation? If so, what is the constant?

Yes; 1/4

Yes; 4

Yes; 2

Multiple Choice

The amount of money earned on a job is directly proportional to the number of hours worked. If $70.00 is earned in 5 hours, how much money is earned in 22 hours of work?

$308

$1.57

$265

Poll

How do you feel about the unit 3 material we reviewed today?

Unit 3 Review

Show answer

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