Graphing Proportional Relationships

What is the constant of proportionality?

• $3

• $4

• $2

• $9

Find the slope of the line that passes through the points (2, 4) and (6, 12)

• 1/2

• -1/2

• 2

• -2

How do you calculate slope using a graph?

• rise over run

• run over rise

• look at the y intercept

• look at the x intercept

Find the slope of the line.

• 1/2

• -1/2

• 2

• -2

Find the slope

• -5/7

• 7/5

• -7/5

• 5/7

find the slope

• 3/2

• -3/2

• (-0,-3)

• none of the above

 Is this table proportional or non-proportional?

• Proportional

• Non-Proportional

Is this table proportional?

• Yes

• No

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

• Proportional

• Not Proportional

Does this table represent a proportional relationship?

• Yes - there is a constant of proportionality

• No - there is not a constant of proportionality