Posted by **LA** on Friday, February 4, 2011 at 8:43pm.

Use a graph to determine whether the given function is continuous on its domain. HINT [See Example 1.]

f(x) =

x + 7 if x < 0

2x − 5 if x ≥ 0

1

continuous discontinuous

If it is not continuous on its domain, list the points of discontinuity. (If there is no such point, enter NONE.)

x = 2

- math -
**helper**, Friday, February 4, 2011 at 9:28pm
This is very simple and quick to graph.

Have you tried to graph these?

What don't you understand?

- math -
**Bosnian**, Friday, February 4, 2011 at 10:39pm
In google type: "function graphs online"

When you see list buf results click on:

rechneronline.de/function-graphs/

When page be open in blue rectacangle

type: x+7

in grey rectacangle click: 2*x-5

In Display properties set:

Range x-axis -20 to 20

and

Range y-axis -20 to 20

Then click option Draw

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