Proportional Relationships

True or False?

Two variables have a proportional relationship if their ratio (or quotient) is always the same?

According to the previous slide (don't look back yet :)), to find the constant....

Find the ratio of the cost to the pounds for each of the three columns. This is the constant of proportionality.

Find the ratio of the votes for Victor to the number of votes for Faye for all columns. This is the constant of proportionality.

Find the ratio of the cost of the chicken to the pieces of the chicken for all columns. This is the constant of proportionality.

According to page 39 in your workbook, "When two variables are proportional, they have a constant ratio or constant quotient."

In this proportional table, Dan charges $15 per hour for walking dogs. What is the missing number in the table?

What makes a graph proportional?

Is this table proportional or non-proportional?

In a proportional relationship, the ratios...

Proportional or Non-Proportional?

If the line on the graph does not pass through the origin, will the graph be Proportional or Non-Proportional?