Proportions Diagnostic

What is a ratio?

• A ratio is a measurement of distance.

• A ratio is a type of fraction.

• A ratio is a unit of measurement.

• A ratio is a comparison between two or more quantities.

Simplify the ratio 4:8.

• 1:2

• 5:10

• 3:6

• 2:4

What is a proportional relationship?

• A proportional relationship is a relationship between two quantities in which the ratio of one quantity to the other quantity remains constant.

• A proportional relationship is a relationship between two quantities in which the ratio of one quantity to the other quantity decreases linearly.

• A proportional relationship is a relationship between two quantities in which the ratio of one quantity to the other quantity increases exponentially.

• A proportional relationship is a relationship between two quantities in which the ratio of one quantity to the other quantity changes randomly.

Determine if the following pairs of ratios are proportional: (1:2, 3:6)

• No

• Sometimes

• Not enough information provided

• Yes

Solve the proportion: 2/3 = x/9

• 3

• 4

• 6

• 5

What is the constant of proportionality in the equation y = 2x?

• 1

• 2

• 3

• 4

If 3 pencils cost $1.50, how much would 5 pencils cost?

• $2.00

• $2.50

• $2.75

• $3.00

Find the missing value in the proportion: 4/5 = 8/x

• 2

• 10

• 20

• 16

What is the cross product property of proportions?

• The product of the means is equal to the product of the extremes.

• The quotient of the means is equal to the quotient of the extremes.

• The difference of the means is equal to the difference of the extremes.

• The sum of the means is equal to the sum of the extremes.

Solve the proportion: 3/5 = 9/x

• 45

• 6

• 12

• 15