Question

NO LINKS!! Please help me with the Domain and Range and Functions Part 1bb​

Answer 1

Domain - the set of possible x-coordinates of a function.

Range - the set of possible y-coordinates of a function.

Question 21

Domain is:

• x ∈ [- 4, 2], both ends included as part of the graph or closed circle..

Range is:

• y ∈ (-6, 6], the lowest point is excluded as open circle, the highest value is included as closed circle..

This is not a function as it fails the vertical line test.

Question 22

Domain is:

• x ∈ [- 6, 2], both ends included as part of the graph.

Range is:

• y ∈ [-7, 7], both ends included as part of the graph.

This is not a function as it fails the vertical line test.

Question 23

Domain is:

• x ∈ [ -2, 0], both ends included as closed circle or part of the graph.

Range is:

• y ∈ (-7, 5], the -7 is excluded as open circle, the 5 is included as closed circle.

This is not a function as it fails the vertical line test.

Question 24

Domain is:

• x ∈ [- 6, 6), One end is included and the other end is excluded.

Range is:

• y ∈ [-7, 1], both ends included as closed circle or part of the graph.

This is a function as it passes the vertical line test.