EOC Blitz Practice - Relations

1. Which graph below represents a functional relationship?

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2. Which table shows y as a function of x?

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3. Which table represents m as a function of t?

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4. Which set of ordered pairs represents y as a function of x? Choose all that apply.

• {(-9, 2), (0, 6), (1, -2), (-3, 6)}
• {(-1, 0), (4, 3), (-7, -3), (-1, -8)}
• {(3, 2), (-4, -2), (3, 1), (-4, 1)}
• {(5, 4), (2, 3), (1, 1), (-2, 4)}

5. Which representation does NOT show y as a function of x?

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6. Which graph does NOT represent y as a function of x?

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7. Which situation best shows causation?

• The length of a rectangle affects the width of the rectangle.
• The amount of time a cell phone is used affects the charge of its battery.
• The number of ice-cream bars sold affects the number of milkshakes sold.
• The number of soccer balls a team owns affects the number of games the team wins during the soccer season.

8. Which situation does NOT show causation?

• When the student population at a school increases, the number of teachers at the school increases.
• When the amount of sugar in a quart of apple juice is reduced, there are fewer calories in each serving.
• When there are more workers on a project, the project is completed in less time.
• When there is more protein in an athlete's diet, the athlete scores more points in a game.

9. Which situation best represents causation?

• When the number of bus stops increases, the number of car sales decreases.
• When fewer firefighters report to a house fire, the damage caused by the fire decreases.
• When ice cream sales increase, incidents of sunburn increase.
• When it rains several inches, the water level of a lake increases.

10. Which of the following is equivalent to 3x - 4y = 6?

• y = -6/7x
• y = -3/4x
• y = 4/3x + 2
• y = 3/4x - 3/2