[MOVED] finding the Domain and Range from the graph

[Jade]

Domain from left to right (x-axis) - Range from bottom to top (y-axis)

On a graph with the points - (-4, 1.2), (-3, 4.5), (-2, 0), (0, -2), (0, 3), and
(5, -3.25). All the points are solid except for the last (5, -3.25).

The domain would be [-4, 5) and the range would be (-3.25, 4.5]

There are no arrows to indicate that the graph goes any further than the points that are listed.

 

[skeeter]

is the function discrete or continuous?

 

[stapel]

Is this a follow-up to your earlier post with the same graph...? (FYI: It is usually best to post replies within the original thread.)

If the graph of the function is, as you say, a set of disconnected dots, then the domain is the x-values and the range is the y-values. Unless there is more to this that you haven't included, I see no justification for assuming that ungraphed x- and y-values are included within the function.

Eliz.

 

[Jade]

Continuous

The graph is continuous

 

[stapel]

is the function discrete or continuous?

Note: With points (x, y) = (0, -2) and (x, y) = (0, 3), this relation cannot be a function.

Eliz.

 

[Jade]

I need to improve my typing Sorry

the points are (0, -2.25) and (3, 0)