Definitions: Ratios and Rates

Instructions:

A review of definitions related to ratios and rates.

Click the arrows on the bottom to get started

Ratio. The relationship between two numbers, represented as a quotient. The numbers in the ratio must have the same units of measurement or represent similar quantities.

Rate. A ratio that compares two different types of quantities. The resulting unit of measurement is based on the individual quantities.

Unit Rate. A rate expressed as a ratio with 1 in the denominator or sometimes as a decimal.

Scale Factor. When two ratios are proportional, one ratio is a scaled-up or scaled-down version of the other ratio.

Rate of Change. Slope thought of as the rate at which the dependent variable changes relative to the independent variable.

Proportional. The relationship between two quantities or variables, such that a change in one results in a direct change in the other.

Proportion. When two ratios are equal, they form a proportion.