Proportions: Equations, Tables, and Graphs

Front

Does the table represent a proportional relationship?

Back

Yes.

Front

Is this graph proportional?

Back

No.

Front

What is the constant of proportionality (in miles per hour) based on the table?

Back

45

Front

A Proportion is ___________________

Back

A mathematical sentence stating that two ratios are equal.

Front

What is the unit rate in this proportional relationship?

Back

60 miles/1 hour

Front

What is a proportion?

Back

A statement that two ratios are equal.

Front

How do you find the constant of proportionality?

Back

Divide the dependent variable by the independent variable.

Front

What does a proportional relationship look like on a graph?

Back

A straight line that passes through the origin.

Front

If y is directly proportional to x, what is the equation?

Back

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

Front

What is the unit rate of 120 miles in 2 hours?

Back

60 miles/1 hour.