Ratios, Rates, and Proportions TEST REVIEW

Front

What is the formula for finding the constant of proportionality (k)?

Back

k = y / x

Front

How do you write an equation for a proportional relationship?

Back

y = kx, where k is the constant of proportionality.

Front

What is the constant of proportionality if y = 1/4x?

Back

k = 1/4

Front

What does it mean for two figures to be similar?

Back

Two figures are similar if the ratios of their corresponding sides are equal.

Front

How do you find a missing side measurement using proportions?

Back

Set up a proportion comparing the known sides and solve for the unknown.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, often expressed as a fraction.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as speed (miles per hour).

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How can you determine if two ratios form a proportion?

Back

Cross-multiply the ratios; if the products are equal, they form a proportion.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first quantity is the numerator and the second is the denominator.