Proportional Relationships

Front

A proportional relationship can be written as an equation in the form ____ = _____ _____

Back

y = mx

Front

Does the graph show a proportional relationship?

Back

No

Front

The constant of proportionality can be found by finding the __________  _____________

Back

unit rate

Front

The cost of 4 pounds of grapes is $24.36. What is the constant of proportionality that relates cost in dollars, y, to the number of pounds of grapes, x?

Back

6.09

Front

Using the graph above, determine the constant of proportionality.

Back

k = 6

Front

What is a proportional relationship?

Back

A relationship where two quantities maintain a constant ratio.

Front

What is the unit rate?

Back

The constant of proportionality in a proportional relationship.

Front

If y = 3x, what is the constant of proportionality?

Back

3

Front

How do you find the constant of proportionality from a table of values?

Back

Divide the y-value by the corresponding x-value.

Front

What does a graph of a proportional relationship look like?

Back

A straight line that passes through the origin.