TEST REVIEW- FUNCTIONS, PRO & NON, DIRECT VARIATION

In a function, each x-value has exactly ___ y-value.

Organize these options into the right categories.

Groups:

(a) FUNCTION

,

(b) NON-FUNCTION

• 
• 
• 
• 

​ (a)  

• YES
• NO

​ (a)  

• NO
• YES

​ (a)  

• NO
• YES

​ (a)  

• YES
• NO

Is this graph proportional

• Yes, because it passes through the origin.

• No, because its a straight line.

Is this equation proportional?

• Yes, the equation is written in y = mx form.

  The variables represent a proportional

  relationship.

• No, because there is no constant.

Julia is saving money for her trip to Disneyland. Her piggy bank is currently empty and decides to save $50 each week for 6 weeks.

• Proportional

• Non-Proportional

 

• Proportional

• Non-Proportional