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3-13.

Is the function graphed at right continuous at the following values of ? If not, explain which conditions of continuity fail. 

and

Look at your Math Notes for the three conditions of continuity.

Use the three conditions to test if the function is continuous at and .

Examine the graph at .

Condition 1:

Condition 2:

.
Therefore exists.

Condition 3:

The function is continuous at .