Undersanding Domain and Range

What is domain?

Domain is all the possible input values for a given function. If you take your pen/pencil and slide it horizontally, where does it hit the function? Make sure you start from the left and slide to the right!

Where does the domain start for this function?

Where does the domain STOP for this function?

Does it beep at the start and stop points?

Yes No

Which of the following represents the domain of the function above?

(-4,2) [-4,2] [-2,4] (-2,4)

Which of the following represents the domain of the function above?

[-1,2] [0,4] (0,4) (-1,2)

Note: You can slide whole graph to the right if you need to!

Why is this function different than the last few examples?

Which of the following represents the domain of the function above?

[1,[math]\infty[/math]) (1,[math]\infty[/math]) (2,[math]\infty[/math]) [2,[math]\infty[/math]]

Which of the following represents the domain of the function above?

(-[math]\infty[/math], 2] (2, -[math]\infty[/math]) [-[math]\infty[/math],[math]\infty[/math]] (-[math]\infty[/math], [math]\infty[/math])

What is range?

Range is all the possible output values for a given function. If you take your pen/pencil and slide it vertically where does it hit the function? Make sure you start from the bottom and slide up!

Where does the range start for this function?

Where does the range STOP for this function?

Does it beep at the start and stop points?

Yes No