Proportions Quiz

What is a ratio?

• A mathematical expression that compares two quantities

• A mathematical expression that represents a proportional relationship

• A mathematical expression that represents a unit rate

• A mathematical expression that represents a direct variation

Which of the following is an example of a proportional relationship?

• The number of hours worked and the amount of money earned

• The number of pages read and the time taken

• The number of students and the number of pencils

• The number of apples and the cost

What is a unit rate?

• A mathematical expression that compares two quantities

• A mathematical expression that represents a proportional relationship

• A mathematical expression that represents a direct variation

• A mathematical expression that represents the rate of change per unit

How do you solve a proportion?

• Cross multiply and divide

• Add the numbers on both sides

• Subtract the numbers on both sides

• Multiply the numbers on both sides

What is direct variation?

• A mathematical expression that compares two quantities

• A mathematical expression that represents a proportional relationship

• A mathematical expression that represents a unit rate

• A mathematical expression that represents a linear relationship

Which of the following is an example of direct variation?

• The number of hours worked and the amount of money earned

• The number of pages read and the time taken

• The number of students and the number of pencils

• The distance traveled and the time taken

What is the ratio of 5:8 in simplest form?

• 5:8

• 1:2

• 5:4

• 3:5

If 4 pencils cost $2, what is the cost of 6 pencils?

• $2

• $3

• $4

• $6

Solve the proportion: 3/5 = x/15

• x = 5

• x = 9

• x = 12

• x = 18

Which of the following represents a direct variation?

• y = 2x + 3

• y = 3x

• y = 2/x

• y = x^2