Domain and Range Equations

What is the range of the function y = 5 – 2x when the domain is {0, 1, 2, 3}?

• {5, 6, 7, 8}

• {5, 3, 1, -1}

• {5, 7, 9, 11}

• {-5, -3, -1, 1}

The function f(x) = 5x + 2

has the domain {-3, -1, 1, 4}. Which

is the range of the function?

• {-17, -7, 7, 22}

• {-17, -3, 3, 18}

• {-13, -3, 7, 22}

• {-13, -3, 9, 12}

A function is represented by the set of ordered pairs shown below.

{(-4, 3), (-1, 3), (0, 3), (1, 5), (3, 7)}

What is the range of this function?

• {7}

• {4}

• {3, 5, 7}

• {-4, 1, 0, 1, -3}

Let f(x) = 3x, where x represents the speed, in miles per hour, of a car, and f(x) represents the total distance traveled. If the car’s maximum speed is 75 miles per hour, which of the following is the best estimate of the range for this function?

• 0 ≤ y ≤ 75

• 0 ≤ y ≤ 225

• y ≤ 75

• y ≥ 0

Jesse earns $18.50 per hour at his job. He works between 10 and 40 hours per week. The function y = 18.5x for 10 ≤ x ≤ 40 shows the relationship between the hours worked and his weekly pay. What are the domain and range for this function?

• Domain: 10 ≤ x ≤ 40; Range: 185 ≤ y ≤ 370

• Domain: 10 ≤ x ≤ 40; Range: 185 ≤ y ≤ 740

• Domain: 10 ≤ x ≤ 50; Range 185 ≤ y ≤ 925

• Domain: 10 ≤ x ≤ 40; Range: 185 ≤ y ≤ 780

What is the range of the function g(x) = -6x - 1 when the domain is {-2, -1, 0, 5}?

• {11, 5, -1, -31}

• {11, 5, 1, 31}

• {-11, 5, -1, -31}

• Not here

A function is shown below.

f(x) = 2x + 1

What is the range value if the domain

value is 3?

• -3

• 7

• -7

• 1

A function is shown below.

f(x) = -2x + 5

What is the range of this function if the

domain is {-2, 3}?

• {-1, 1}

• {-1, 9}

• {9, 11}

• {-1, 11}

What is the domain of the function shown

on the graph?

• {-1, -2 , -3, -4}

• {-1, -2, -4, -5}

• {1, 2, 3, 4}

• {1, 2, 4, 5}

A function is shown below.

f(x) = 4x − 1

What is the domain value if the range

value is -5?

• 1

• 7

• -1

• -7