Extending Proportionality Review

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?

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Which graph represents the equation y = 3x?

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What kind of relationship is this?

• Additive
• Multiplicative

What kind of relationship is this?

• Additive
• Multiplicative

What is the correct equation for a multiplicative relationship?

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

The cost of a bookmark at the school book fair is $0.79. Which equation can be used to find c, the cost in dollars of b bookmarks?

• c = 0.79 + b

• b = 0.79 + c

• b = 0.79c

• c = 0.79b

Which table could represent the equation y = 0.1x?

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Based on the graph, which statement is true?

• A. The cost is the dependent variable.
• B. The flat fee is the dependent variable.
• C. The number of people is the dependent variable.
• D. The number of zoo exhibits is the dependent variable.

What is the algebraic equation for this table?

• y = 480x
• x = y/480
• x + 480 = y
• 480 - x = y

Use yoga classes as your x and cost as your y. Which equation represents this table?

• y=30x

• y=2x

• y=15x

• y=6x