Understanding Domain, Range, and Functions

What is the domain of a function that starts at -3 and extends infinitely to the right?

• X ≤ -3

• X < -3

• X ≥ -3

• X > -3

How is the domain expressed using interval notation for a function starting at -3 and extending infinitely?

• [-3, ∞]

• (-3, ∞)

• [-3, ∞)

• (-3, ∞]

What is the range of a function that starts at -2 and extends infinitely upwards?

• Y ≥ -2

• Y > -2

• Y < -2

• Y ≤ -2

How is the range expressed using interval notation for a function starting at -2 and extending infinitely upwards?

• (-2, ∞]

• (-2, ∞)

• [-2, ∞]

• [-2, ∞)

What does the vertical line test determine about a graph?

• If the graph is decreasing

• If the graph is a function

• If the graph is continuous

• If the graph is increasing