Connecting proportional relationships and the equation of a straight line

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Which runner had a head start?

• A
• B
• C

Describe the characteristics of a graph that is proportional?

• Linear
• The line goes through the origin
• Curvy line
• Linear and the line goes through the origin

Is this table proportional?

• Yes
• No

 $y=-6x$  

• Proportional 

• Not Proportional 

Answer explanation

Proportional relationships are in the form y=kx

What is the unit rate in miles per hour for this proportional relationship?

(Click the graph to enlarge the image.)

• 60 miles per hour

• 120 miles per 2 hours

• 1 mile per hour

• 60 miles per 2 hours

Which representation does NOT reflect the situation?

• A

• B

• C

• D

What is the Range of the situation?

• All real numbers greater than or equal to 0 and less than or equal to 28
• All real numbers greater than or equal to 0 and less than or equal to 9
• All real numbers less than or equal to 28
• All real numbers less than or equal to 9

Which statement below accurately represents the graph?

• $100 is earned for each hour worked
• $100 is earned for every 2 hours worked
• $500 is earned for every 8 hours worked
• $400 is earned for every 6 hours worked

Is the graph proportional or non proportional?

• proportional
• non proportional