CL Module 1 Topic 1 Review Part 2

This relation is a function

• True

• False

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TEKS

A.12A

This relation is a function

• True

• False

Answer explanation

The relation is not a function, because it fails the vertical line test since there is more than one output, or y-value, for every input, or x-value.

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TEKS

A.12A

This relation is a function

• True

• False

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TEKS

A.12A

Rohan is at an amusement park.

While waiting in line, he reads the statistics on the roller coaster he is about to board.

The coaster reaches a maximum speed of 75 miles per hour, and the ride lasts three minutes.

The domain is ​ (a)   .

The range is ​ (b)   .

Answer explanation

The domain is the time of the ride in minutes.

The range is the speed of the coaster in mph.

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TEKS

A.2A

A.6A

A.9A

Graham uses a hot water bottle on an injury to his back he incurred playing basketball.

He fills the bottle with water that is a temperature of 100°F.

After 25 minutes, Graham finds that the bottle has cooled and he stops using it.

The domain is ​ (a)   .

The range is ​ (b)   .

Answer explanation

The domain is the time that Graham uses the water bottle in minutes.

The range is the temperature of the water in °F

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TEKS

A.2A

A.6A

A.9A

A township buys a new asphalt road paver. The paver costs $50,500. The value of the paver decreases each year after purchase. Eventually, it decreases so much in value that it can only be sold for $2,500 for parts.

The domain is ​ (a)   .

The range is ​ (b)   .

Answer explanation

The domain is the number of years that the paver is owned

The range is the dollar value of the asphalt road paver

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TEKS

A.2A

A.6A

A.9A

Neville and his friends are going to a local peach festival. They plan to go on rides all day. The tickets for the rides are $0.50 each.

The domain is ​ (a)   .

The range is ​ (b)   .

Answer explanation

The domain is the number of tickets Neville and his friends buy

The range is cost of the tickets

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TEKS

A.2A

A.6A

A.9A

Keya is kayaking on a river. The cost to rent the kayak is $25 per hour or $200 for the entire day, from 8 a.m. to 8 p.m.

The domain is ​ (a)   .

The range is ​ (b)   .

Answer explanation

The domain is the amount of time the kayak is rented, in hours

The range is the cost to rent the kayak in dollars

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TEKS

A.2A

A.6A

A.9A

Tavares has a thermos that he takes to volleyball practice. The thermos can hold up to 18 ounces of water. The thermos develops a leak and starts losing water at a rate of 1 ounce every 2 minutes.

The domain is ​ (a)   .

The range is ​ (b)   .

Answer explanation

The domain is the amount of time water is leaking in minutes

The range is the amount of water remaining in the thermos in ounces

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TEKS

A.2A

A.6A

A.9A

Determine whether each graph represents a

linear function, a quadratic function,

an exponential function, or a linear absolute value function.

• linear

• quadratic

• exponential

• linear absolute value

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TEKS

A.3C

A.7A

A.9D