Examples of Proportional Equations

Examples of Non-Proportional Equations

Proportional Relationships from Tables

To determine if a data table has a proportional relationship, the constant of proportionality must be the same for each ordered pair. The constant of proportionality is represented by the letter "k".

The formula for the constant of proportionality is k = y/x.

TABLES. Proportional or Not?

Determine the constant of proportionality.

Then state if the data table has a proportional relationship. 

TABLES. Proportional or Not?

Determine the constant of proportionality.

k=12 for each x and y.

Then state if the data table has a proportional relationship. Yes, y/x stays the same.

TABLES. Proportional or Not?

Determine the constant of proportionality.

Then state if the data table has a proportional relationship. 

TABLES. Proportional or Not?

Determine the constant of proportionality.

k= 0.50 for each x and y.

Then state if the data table has a proportional relationship. Yes, y/x stays the same

TABLES. Proportional or Not?

Determine the constant of proportionality.

Then state if the data table has a proportional relationship. 

TABLES. Proportional or Not?

Determine the constant of proportionality.

k=7.33, 4, 2.77, 2.25

Then state if the data table has a proportional relationship.  No, y/x does not remain the same

Proportional vs. Non-Proportional from a Graph