Unit 4 Exam Review

Pamela rode her bike at a constant rate of 0.1 kilometer per minute. Which table represents y, the number of kilometers Pamela rode her bike in x minutes?

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Which answer choice represents a person burning 90 calories by climbing 18 flights of stairs?

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• c = f + 5, where c represents the number of calories burned and f represents the number of flights of stairs climbed.

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• A person who climbs 5 flights of stairs will burn one calorie.

Cheddar cheese costs $4.25 per pound. Which equation best represents y, the total cost of x pounds of cheddar cheese?

• x = 4.25 + y

• x = 4.25y

• y = 4.25 + x

• y = 4.25x

The graph represents the linear relationship between the number of books Layla has read and the number of months she has been a member of the book club.

Which of these statements is supported by the rate of change in this relationship?

• Layla read 2 books in the first 3 months she was a member of the book club.

• Layla read 3 books in the first 2 months she was a member of the book club.

• Layla read 3 books in the first 4 months she was a member of the book club.

• Layla read 4 books in the first 3 months she was a member of the book club.

Which of these does NOT represent the distance a car travels when going 55 miles per hour?

• d = 55t, where d represents distance in miles and t represents time in hours.

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• In 3 hours a car will travel a distance of 160 miles.

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An artist is making a scale model of a statue. On the model 2 inches represents 1 foot on the actual statue. Which graph best represents this relationship?

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A dolphin travels through the water at a speed of 25 kilometers per hour. Which representation shows the distance a dolphin can travel at this rate?

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• y = x + 25, where x represents the time in hours and y represents the distance in kilometers

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• In 5 hours a dolphin can travel a distance of 135 kilometers

Caroline's cell phone plan costs $32 per month. Which table shows the sum of the amounts that Caroline will pay for her cell phone plan over the next 4 months?

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During migration, a butterfly can travel 30 miles in hour. Which graph best represents y, the number of miles a butterfly can travel in x hours?

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Frank and his family drove 6 hours every day during a road trip. Which graph best represents y, the total number of hours driven in x days?

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