Graphs of Relationships

Mario and Lila have walked a total of _____ miles after 5 weeks.

Aubrey is making bead kits. Each one contains 20 red beads and 15 gold beads.

Complete the table using the numbers in the boxes to show how many red beads and gold beads are in different numbers of bead kits. (Numbers may be used once, more than once, or not at all.)

Choose all the ordered pairs that represent amounts Mario and Lila have walked.

• (6, 12)

• (12, 20)

• (30, 36)

• (38, 44)

• (42, 48)

What is the constant of proportionality for this table?

• $1/9 per hour
• $9 per hour
• $8 per hour

Which of the following statements is NOT true?

• The total number of miles Lila has walked is always 6 more than the total number of miles Mario has walked.

• The total number of miles Mario has walked is always 6 less than the total number of miles Lila has walked.

• The total number of miles Mario has walked is always 8 less than the total number of miles Lila has walked.

• Both students walk 8 miles each week.

Find the unit rates. What is the best explanation for the better deal?

• You will get more cereal with cheerios for 17 ounces
• Apple Jacks has the best unit rate: $4.50
• Cheerios is the least expensive by the ounce: $0.216 per ounce
• Apple Jacks costs less money than Cheerios

Is the table proportional?

• Yes

• No

The graph above shows the price of games in dollars.  Is the graph proportional and how do you know?

• The graph is proportional  because it is linear.
• The graph is proportional because it is linear and passes through the origin.
• The graph is not proportional because it does not pass through the origin.
• The graph is not proportional because it is not linear and it does not pass through the origin.

• y = 5x
• y = .10 + x
• y = .08 + x
• y = .8 + x

Is the picture showing an additive or a multiplicative relationship?

• Additive
• Multiplicative