Is It Proportional Graph

Write an equation to represent the graph.  Is it proportional or non-proportional.

• y = 5x - 3.  It is proportional

• y - 3 = 5x.  It is proportional

• y = -5x - 3.  It is not proportional

• y = 5x - 3.  It is not proportional.

Which statement best describes the relationship of x and y in the table?

• Proportional

• Not Proportional

The graph shows the water level as a bathtub fills.  Select the correct choice that describes this graph.

• The graph is proportional because the y to x ratio is constant (the same).

• The graph is non-proportional because it does not pass through the origin (0,0).

• The graph is proportional because it is linear (a straight line).

• The graph is non-proportional because it is linear (a straight line).

What is the y-intercept for the following table and is it proportional or non-proportional?

• Proportional, y-intercept is 0

• Non-proportional, y-intercept is 0

• Proportional, slope is 0

• Non-proportional, slope is 0

What is the constant of proportionality for this table?

• 1/9

• 9

• 8

Does the table represent a proportional relationship?

• Yes.

• No.

Does the table represent a proportional relationship?

• Yes.

• No.

Which statement best describes the relationship between x and y in the table?

• Proportional

• Not Proportional

Is this table proportional or non-proportional?

• Proportional

• Non-Proportional

• both

• neither

Which table shows a proportional relationship?

• A

• B

• C

• D