Algebra 1 - Chapter 4 Quiz 2 Review

A taxi company charges passengers $1.00 for a ride, and an additional $0.30 for each mile traveled. The function rule C = 0.3m + 1 describes the relationship between the number of miles m and the total cost of the ride c.

If the taxi company will only go a maximum of 40 miles, what is a reasonable graph of the function rule?

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The time it takes for a car battery to die. 

• Discrete
• Continuous

The number of school lunches sold during the month. 

• Discrete
• Continuous

Identify the function rule that best represents the following statement:
The total cost (C) for kilograms of beef (k) if each kilogram costs ​$2.55

• C = 2.55k
• C = 2.55 + k
• C = 2.55 - k
• C = 2.55k + 2.55

A plumber charges a service fee of $40 plus $25 per hour for labor.
(A) Write a function rule for the total cost of hiring the plumber for a job that takes x hours.
(B) How much would it cost to hire the plumber for a job that takes 4 hours?

• (A) y = 40 + 25x
  (B) $140
• (A) y = 40x + 25
  (B) $185
• (A) y = 40 + 25x 
  (B) $185
• (A) y = 40x + 25 
  (B) $140

The school cafeteria has 285 cartons of milk in stock. Each day, a total of 60 cartons are sold. Which function rule best represents this situation?

• y = 285x + 60 
• y = 285x - 60
• y = 285 - 60x
• y = 285 + 60x

A car rental agency charges ​$28 per day to rent a car. They charge an additional $8 per day if the car comes installed with GPS. Which function rule best represents the total rental cost of a car with GPS installed for x days?

• y = 36x
• y = 28 + 8x
• y = 28x + 8
• y = 28 - 8x

Identify the mapping diagram that represents the relation and determine whether the relation is a function.

{(-3, -6), (-1, -6), (5, -6), (8, -6)}

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Identify the mapping diagram that represents the relation and determine whether the relation is a function.

{(-8, -6), (-5, 2), (-8, 1), (7, 3)}

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For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}
• D:{-4, 0, 1, 2}
  R:{-4, -3, 1}
• D:{0, 1, 2, 3, 4}
  R:{1, -3, -4}