Finding Domain and Range from Equations

What is the domain of the graph?

• -7 ≤ x < 5

• -3 ≤ x < 1

• -3 ≤ y < 1

• -7 ≤ y < 5

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the domain and range of f(x)=15?

• Domain: All real numbers greater than or equal to 15

  Range: All real numbers

• Domain: All real numbers

  Range: {15}

• Domain: {15}

  Range: All real numbers

• Domain: All real numbers

  Range: All real numbers greater than or equal to 15

A set of weights includes a 4 lb barbell and 6 pairs of weight plates. Each pair of plates weighs 20 lb. If x pairs of plates are added to the barbell, the total weight of the barbell and plates in pounds can be represented by f(x)=20x+4. What is the range of the function for this situation?

• {0, 1, 2, 3, 4, 5, 6}

• {4, 24, 44, 64, 84, 104,124}

• {0, 2, 4, 6}

• {4, 44, 84, 124}

Which of the following represents the range of

f(x)= x² - 4x - 5

• y ≥ 2

• x ≥ 2

• y ≥ -9

• x ≥ -9

A 25 gallon bathtub is draining at a rate of 2.5 gallons per minute. The number of gallons remaining, g, is a function of the number of minutes, m. What is the domain for this situation?

• 0 ≤ g ≤ 25

• 0 ≤ m ≤ 10

• 2.5 ≤ m ≤ 25

• 10 ≤ g ≤ 25

The table shows some points on the quadratic function h. What is the range of h?

• All real numbers

• All real numbers greater than or equal to -7

• All real numbers greater than or equal to -8

• All real numbers greater than or equal to 0

What is the range of the function graphed on the grid?

• y < -4

• y ≤ -4

• y ≥ -4

• y > -4

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

• A
• B
• C
• D

Tags

CCSS.HSF-IF.C.7B

Determine the domain and range of the function

• Domain: All real numbers, Range: All real numbers

• Domain: x ≥ -4, Range: All real numbers

• Domain: All real numbers, Range: y ≥ -4

• Domain: -1 ≤ x ≤ 5, Range: y ≥ -4