Understanding Domain and Range

The video tutorial explains how to determine the domain and range of functions. It begins by defining the domain as the set of all possible inputs and the range as the set of all possible outputs. The tutorial then examines two tables: a vertical table and a horizontal table, demonstrating how to list the domain and range values from least to greatest without repetition. The video emphasizes understanding discrete domains and ranges and provides examples to illustrate these concepts.

What is the domain of a function?

• The set of all possible inputs

• The set of all possible z values

• The set of all possible outputs

• The set of all possible y values

How should values in a discrete domain and range be listed?

• Alphabetically

• From least to greatest

• In any order

• From greatest to least

What is the domain of the first function presented in the vertical table?

• {4, 5, 7}

• {2, 3, 4}

• {-3, -2, 0, 2, 5}

• {-3, -1, 0, 1, 3, 5}

What is the range of the first function presented in the vertical table?

• {4, 5, 7}

• {-3, -2, 0, 2, 5}

• {2, 3, 4}

• {1, 2, 3}

What is the domain of the second function presented in the horizontal table?

• {-3, -2, 0, 2, 5}

• {2, 3, 4}

• {-3, -1, 0, 1, 3, 5}

• {4, 5, 7}

What is the range of the second function presented in the horizontal table?

• {1, 2, 3}

• {2, 3, 4}

• {4, 5, 7}

• {-3, -1, 0, 1, 3, 5}