Ratio

Are the ratios in this table all proportional?

• Yes

• No

What is the Constant of Proportionality for Jose's data? (remember to simplify as much as possible) (don't worry about units)

Answer explanation

The constant of variation (slope for proportional graphs) is y/x (ANY y/x)

What is the Constant of Proportionality for this graph?

Answer explanation

The Constant of Proportionality (like slope for proportional data sets) can b found by taking ANY y/x on the line.

Find the Constant of Proportionality for this graph. (Make sure to simplify)

The ratio of Lions to Tigers at Illinois zoos is 7:2.

If there are 81 big cats all together in Illinois, how many of the are Lions?

The ratio of motorcycles to cars is 2/9 in the parking lot. If there are 99 vehicles in the lot, how many are motorcycles?

What is a ratio?

• A comparison of two quantities by addition

• A comparison of two quantities by division

• A comparison of two quantities by multiplication

• A comparison of two quantities by subtraction

What is a ratio table used for?

• To organize and find equivalent ratios; Represents the relationships between two or more quantities

• To organize and find different ratios; Represents the relationships between two or more quantities

• To organize and find opposite ratios; Represents the relationships between two or more quantities

• To organize and find no value ratios; Represents the relationships between two or more quantities

What is a proportion?

• An equation that shows that two ratios are different

• An equation that shows that two ratios are equal

• An equation that shows that two ratios are opposite

• An equation that shows that two ratios have no value

What are the different types of ratio relationships?

• Part-to-Part; Whole-to-Part; Part-to-Whole

• Part-to-Part; Whole-to-Whole; Part-to-Whole

• Part-to-Part; Part-to-Whole; Whole-to-Whole

• Whole-to-Part; Whole-to-Whole; Part-to-Whole