Proportional Relationships and Rate of Change

Analyze the point (3, 27). What does the point represent?

• The point (3,27) represents 27 shirts for $3.

• The point (3,27) represents $27 for 3 shirts.

Does this table show a proportional relationship?

• Yes

• No

Does the graph show a proportional relationship?

• Yes, it's linear and goes through the origin

• Yes, it's linear

• Yes, it goes through the origin

• Yes, the line is pretty

Does the table represent a proportional relationship?

• Yes.

• No.

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

Does the graph represent a proportional relationship?

• yes

• no

What is the rate of change if y = 31x

• 13

• 31

• 1/3

• 3

What is a set of data that has a constant ratio of y/x or a relationship of equivalent ratios?

• Ratio

• Rate

• Unit Rate

• Constant of proportionality

• Proportional Relationship

What is the ratio that remains constant throughout a set of data that is proportional?

• Ratio

• Rate

• Unit Rate

• Constant of proportionality

• Proportional Relationship

What is the equation that represents a proportional relationship?

• k = x/y

• k = y/x

• x = ky

• y = kx