Unit 2 Quiz Review

Unit 2 Quiz Review

Math 7 2021

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Fill in the Blanks

Fill in the Blanks

Multiple Choice

Write an equation for this situation.

• y=9.6x

• y=19x

• y=19.25x

• y=9.5x

Multiple Choice

A pancake recipe requires 4 eggs for every 8 pancakes. What represents the constant in this situation?

• The number of eggs per pancake.

• The total number of pancakes made.

• The number of eggs used.

• There is no constant, because this is not a proportional relationship.

Multiple Choice

Write the equation for the table given

• y = 1/3x

• y = 3x

• y = 1/2x

• x = 3y

Multiple Choice

What is the formula for a proportional relationship?

• y=kx

• y=k/x

• z=ykx

• y=ky

Multiple Choice

Write an equation for this relationship.

• y=4x

• y=1/8x

• y=1/4x

• y=8x

Multiple Choice

Hamburger meat sells for $6 for every 3 pounds. If Alicia buys 10 pounds of hamburger meat, how much will she pay?

• $30

• $20

• $60

• $10

Multiple Choice

A cake recipe calls for 1.5 cups of milk and 3 cups of flour. Seth made a mistake and used 5 cups of flour. How many cups of milk should he use to keep the proportions correct?

• 2.5 cups milk

• 1.75 cups milk

• 2 cups flour

• 2.25 cups milk

A bit of everything...​

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Multiple Choice

The distance that an automobile travels varies directly as the time it travels. If the car travels 280 miles in 7 hours, how far will it travel in 12 hours?

• 480

• 1960

• 84

• 25

Multiple Choice

On last week’s maths test Carol had 21 correct out of 25 problems. What percent grade did she receive?

• 42

• 80

• 84

• 92

Multiple Choice

Write an equation for this relationship.

• y=1/5x

• y=1/2x

• y=2x

• y=5x

Fill in the Blanks

Multiple Choice

What equation represents this situation? Justin runs at a constant rate, traveling 17 km in 2 hours.

• y=17x

• y=2x

• y=34x

• y=8.5x

Multiple Choice

Does this table represent a proportional relationship?

• Yes - there is a constant of proportionality

• No - there is not a constant of proportionality

Fill in the Blanks

Multiple Choice

The x2 and x5 shown on the outside of the table are demonstrating:

• constant of proportionality

• scale factor

• length of the table

Multiple Choice

What is the constant of proportionality of the equation below? $$y=9.3x$$  

• 9.3

• 3

• 9

• 9.3x

Multiple Choice

A fence post that is 2 meters tall casts a shadow 5 meters long.  At the same time a tree casts a shadow 108 meters.  How tall is the tree?

• 33.2 meters

• 332 meters

• 43.2 meters

• 432 meters

Multiple Choice

If the constant of proportionality is 10, which of the following is the correct proportional equation?

• 10=kx

• 10=k

• y=10k

• y=10x

Multiple Choice

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

• y

• x

• 14

• 1/14

Multiple Choice

Does this equation represent a proportional relationship?

• Yes

• No

Multiple Choice

• Yes; 1/3

• Yes; 3

• Yes; 5

• No; 3

Multiple Choice

Fill in the missing numbers.

• 1/4, 5, 6

• 1/2, 10, 12

• 1/8, 2.5, 3

• 1/4, 7/2, 8

Multiple Choice

 if there are 5 boys for every 7 girls in math class, how many boys are there if there are 35 girls?

• 20

• 25

• 30

• 35

Multiple Choice

What is the equation for this table? Use y=kx format.

• y=0.125x

• y=8x

• y=2x

• y=5x