Finding the Domain and Range

The graph of an exponential function is shown on the grid. Based on the graph, which statement about the function is true?

• The range is the set of all real numbers less than 0.

• The domain is the set of all real numbers greater than -4.

• The range is the set of all real numbers greater than 0.

• The domain is the set of all real numbers less than -4.

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

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

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

• y < -4

• y ≤ -4

• y ≥ -4

• y > -4

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

• F

• G

• H

• J

The domain of a function is the same as the set of independent variables.

• True

• False

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

• D:{0, 1, 2, 3, 4}
  R:{1, -3, -4}

What is the range of the following graph?

• all real numbers

• all integers

• any real number greater than zero

• it can not be determined