Linear Domain and Range in Context

Samantha is saving money for a school trip. She starts with $20 and plans to save $5 per week from her allowance. Let x represent the number of weeks, and y represent the total amount of money she has saved. What is a reasonable range?

• {0,1,2,3,4,...}

• All real numbers

• {1,2,3,4,...}

• {20,25,30,35,...}

Samantha is saving money for a school trip. She starts with $20 and plans to save $5 per week from her allowance. Let x represent the number of weeks, and y represent the total amount of money she has saved. What is a reasonable domain?

• {0,1,2,3,4,...}

• All real numbers

• {1,2,3,4,...}

• {20,25,30,35,...}

Alex runs a car rental service. The company charges a flat fee of $30 plus $0.25 per mile for renting a car. Let x represent the number of miles driven, and y represent the total cost of renting a car. What is a reasonable domain?

• All real numbers

• All numbers greater than or equal to 0 including decimals

• All whole numbers greater than or equal to 0

• All numbers greater than or equal to 30

Alex runs a car rental service. The company charges a flat fee of $30 plus $0.25 per mile for renting a car. Let x represent the number of miles driven, and y represent the total cost of renting a car. What is a reasonable range?

• All real numbers

• All numbers greater than or equal to 0 including decimals

• All whole numbers greater than or equal to 0

• All numbers greater than or equal to 30

• A

• B

• C

• D

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Tags

A.2.A

Which is true about the function graphed?

• is a domain value but not a range value.

• is a range value but not a domain value.

• is a range value AND a domain value.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which is true about the function graphed?

• is a domain value but not a range value.

• is a range value but not a domain value.

• is a range value AND a domain value.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Milan has a car that gets 30 miles per gallon. Her car has a 12 gallon tank. The function f(x) = 12(30) - 60x models how long Milan can drive until her tank is empty at 60 miles per hour. What are the domain and range of this situation?

• Domain: 0 < x < 360

  Range: 0 < y < 12

• Domain: 0 < x < 6

  Range: 0 < y < 360

• Domain: all real numbers

  Range: all real numbers

• Domain: 0 < x < 30

  Range: 0 < y < 60

A shipping company charges a base fee of $10 plus $2 for every pound of cargo shipped. Let x represent the weight of the cargo in pounds, and y represent the total cost of shipping. What is a reasonable range?

• All real numbers

• All numbers greater than or equal to 0 including decimals

• All whole numbers greater than or equal to 0

• All numbers greater than or equal to 10