Proportional vs Additive Relationships

In graphs of multiplicative relationships, the graph always starts at the origin (0,0).

• True

• False

In graphs of additive relationships, the graph always starts at the origin (0,0).

• True

• False

What is the correct equation for a multiplicative relationship?

• y = x + a
• x = y + a 
• y = ax
• a/x = m

What is the correct equation for an additive relationship?

• y = x+a
• x = y+a
• y = ax
• a/x = m

Is the picture showing an additive or a multiplicative relationship?

• Additive
• Multiplicative

The total number of markers, m, contained in p packages can be represented by the equation m = 8p. Which of the following tables best represents this situation?

• 
• 
• 
• 

What type of relationship is represented in this graph?

• Additive because it doesn't cross the origin

• Multiplicative because it crosses through the origin

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D