Exploring Functions, Domain, and Range in Algebra 2

What is a function in terms of domain and range?

• A relation where the domain repeats

• A relation where the domain does not repeat

• A relation where the range does not repeat

• A relation where the range repeats

In the first example, why is the set of coordinates not a function?

• Because the y-values do not repeat

• Because the x-values repeat

• Because the x-values do not repeat

• Because the y-values repeat

What does the vertical line test help determine?

• If a graph is exponential

• If a graph is quadratic

• If a graph is a function

• If a graph is linear

What happens if a vertical line touches a graph in more than one place?

• The graph is quadratic

• The graph is a function

• The graph is linear

• The graph is not a function

How do you state the domain from given coordinates?

• List all the y-values

• List all the x-values

• List all the negative values

• List all the positive values

What is the range for the coordinates (3, 4), (-1, 6), and (0, 2)?

• 3, -1, 0

• 4, 6, 2

• 3, 6, 2

• 4, -1, 0

In a graph starting at (2, 1) and curving up and to the right, what is the domain?

• x ≥ 2

• x ≤ 2

• y ≥ 1

• y ≤ 1

For a graph starting at (0, 1) and curving up, what is the range?

• x ≥ 0

• y ≥ 1

• y ≤ 1

• x ≤ 0

If a graph starts at (3, 0) and curves up and down, what is the range?

• x ≥ 3

• y ≤ 0

• y ≥ 0

• All real numbers

For a graph starting at (3, 0) and curving only to the right, what is the domain?

• x ≥ 3

• y ≥ 0

• x ≤ 3

• y ≤ 0