What is the range of the function graphed below?

Range = [tex]-3 < y \le 3[/tex]
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Explanation:
The range is the set of all possible y values of a function.
The lowest point happens when y = -3. We exclude this y value because of the open hole.
The highest point is at y = 3 which is included because of the filled in circle.
The range can be written as [tex]-3 < y \le 3[/tex] meaning y is between -3 and 3, excluding -3 but including 3.
Side note: The range in interval notation is (-3, 3].