Unit 1: Proportional Relationships

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Front

How do you determine if two quantities are proportional?

Back

Two quantities are proportional if they can be expressed as a constant ratio or if a graph of the two quantities is a straight line that passes through the origin.

Front

If Jorge’s printer can print 24 pages in 15 minutes, how many pages can it print in 1 hour?

Back

96 pages

Front

What does the slope of a line represent in a proportional relationship?

Back

The slope represents the constant ratio between the two quantities.

Front

What is the equation of a proportional relationship?

Back

The equation is in the form y = kx, where k is the constant of proportionality.

Front

If y = 5x, what is the constant of proportionality?

Back

The constant of proportionality is 5.

Front

Which color car represents a proportional relationship?

Back

White car

Front

What is the unit rate?

Back

The unit rate is the ratio of two measurements in which the second quantity is 1.

Front

How do you find the better buy between two products?

Back

Calculate the unit price for each product and compare them.

Front

If Walmart has cookies on sale 20 for $3.99, what is the unit price?

Back

The unit price is $0.1995 per cookie.