Interpreting Points in a Proportional Relationship version 1

Hour

• 1st hour
• 2nd hour
• 3rd hour
• 4th hour
• 5th hour

Last Name

First Name

1.) Does a graph that passes through the point (0, 2) represent a proportional relationship?

• Yes
• No
• There is no way to know unless you see the graph.

2.) The graph shows a proportional relationship between the number of days reading a book and the number of pages read. What does the point (4, 160) represent?

• It takes 4 hours to read 160 pages of a book.
• In 4 days, this person will read 160 pages.
• It takes 160 days to read 4 pages.
• This person will read 4 pages a day until they have read 160 pages total.

3.) Does this graph show a proportional relationship?

• Yes, this shows a proportional relationship because the line is straight.
• Yes, this shows a proportional relationship because it passes through the point (0, 4).
• No, this is not a proportional relationship because it does not pass through (0, 0).
• It is impossible to tell if this represents a proportional relationship.

5.) What is the constant of proportionality/unit rate shown on this graph?

6.) The graph shows the total cost of various amounts of candy bars. What does the marked point represent in this situation?

• The cost of 8 candy bars is $10.
• The cost of 10 candy bars is $8.
• The weight of 10 candy bars is 8 ounces.
• The weight of 8 candy bars is 10 ounces.

7.) What equation represents the graph shown?

• y = 2x
• y = 3x
• y = x + 3
• y = x + 2