Direct Proportion Graphs

1.

Multiple Choice

15 mins

1 pt

If y is directly proportional to x, and y=20 when x=5, what is the equation connecting y and x?

20y=5x

y=5x

y=4x

y=(1/4) x

2.

Multiple Choice

15 mins

1 pt

If y is directly proportional to x, and y = 24 when x = 2,

what is the equation connecting y and x?

y=12x

y=kx

12

y=k/x

12y=x

3.

Multiple Choice

15 mins

1 pt

Is this table proportional?

yes

no

I'm not sure, I need extra help!

4.

Multiple Choice

15 mins

1 pt

What makes a graph proportional?

Linear

It goes through the origin

Curvy line

Linear and the line goes through the origin

5.

Multiple Choice

15 mins

1 pt

Is the graph proportional or non proportional?

proportional

non proportional

6.

Multiple Choice

15 mins

1 pt

Which graph shows a proportional relationship?

7.

Multiple Choice

15 mins

1 pt

What is the constant of proportionality for this table?

1/9

9

8

8.

Multiple Choice

15 mins

1 pt

Write the equation for the table given

y = 1/3x

y = 3x

y = 1/2x

9.

Multiple Choice

15 mins

1 pt

In the equation y = 14x, what is the constant of proportionality?

y

x

14

10.

Multiple Choice

15 mins

1 pt

Name the constant of proportionality.

8

16

6

3

11.

Multiple Choice

15 mins

1 pt

Which of the given graphs is a direct variation?

A

B

C

D

12.

Multiple Choice

15 mins

1 pt

12 ounce shampoo bottle lasts Mike 16 weeks. How long would you expect an 18-ounce bottle of the same brand to last him?

24 weeks

6 weeks

30 weeks

20 weeks

13.

Multiple Choice

15 mins

1 pt

A 6-ounce package of fruit snacks contains 45 pieces. How many pieces would you expect in a 10-ounce package?

25 pieces

35 pieces

75 pieces

70 pieces

14.

Multiple Choice

15 mins

1 pt

A grading machine can grade 48 multiple-choice tests in 1 minute. How log will it take the machine to grade 300 tests?

6 minutes

6.25 minutes

5.25 minutes

5 minutes

15.

Multiple Choice

15 mins

1 pt

A shop produces 39 wetsuits every 2 weeks. How long will it take the shop to produce 429 wetsuits?

18 wk

20 wk

22 wk

24 wk

16.

Multiple Choice

15 mins

1 pt

Solve: 5 / 15 = 15 / w

45

33

47

40

17.

Multiple Choice

15 mins

1 pt

Do the ratios form a proportion?

Yes, they form a proportion.

No, they do not form a proportion.

18.

Multiple Choice

15 mins

1 pt

Lynnette can wash 95 cars in 5 days. How many cars does she wash each day?

475 cars per day

19 cars per day

.05 cars per day

15 cars per day

19.

Multiple Choice

15 mins

1 pt

Henry can write 5 ¼ pages of his novel in 3 hours. How many pages does he write per hour?

15.25 pages per hour

15.75 pages per hour

1.75 pages per hour

not here

20.

Multiple Choice

15 mins

1 pt

How are rates and unit rates similar?

They both are fractions.

They both compare two different quantities of information.

They are not similar at all.

not here

21.

Multiple Choice

15 mins

1 pt

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

numerator

bottom number

fraction

denominator

22.

Multiple Choice

15 mins

1 pt

Jenny has 3 guitars. Steve has 4 guitars. If the ratio of guitars is 4:3, who is first in the ratio?

Jenny

Steve

It doesn't matter

Andy Griffith

23.

Multiple Choice

15 mins

1 pt

Christina biked 36 miles in 6 hours. If she biked at a constant speed, how many miles did she ride in one hour?

6 mph

216 mph

30 mph

42 mph

24.

Multiple Choice

1 min

1 pt

Sargento cheese slices $2.48 for 10 slices
or
Velveeta Cheese slices $3.18 for 12 slices
Find the unit price for each and choose the better deal.

Sargento

Velveeta

25.

Multiple Choice

15 mins

1 pt

Oreos $2.98 for 15.5 oz.
or
Chips Ahoy $2.50 for 14 oz.
Find the unit price of each and choose the better deal.

Oreos

Chips Ahoy

26.

Multiple Choice

15 mins

1 pt

Coca-Cola $1.29 for 1.25 L
or
Pepsi $2.49 for 2L
Find the unit price of each and choose the better deal.

Pepsi

Coca-Cola

27.

Multiple Choice

15 mins

1 pt

What is the direct variation?

y=9/3x

y=6x

y=9x

y=3x

28.

Multiple Choice

15 mins

1 pt

what is the constant of proportionality?

y=5x

y=6x

y=30x

y=jfoiwuyr98q27r98

29.

Multiple Choice

15 mins

1 pt

Determine the direct variation.

y=25

y=10

y=3987

y=5x

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