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Answer:
3. D: {-6, -1, 2, 4, 5}; R: {-2, -1, 0, 3}
4. D: {-3, -2, 0, 2, 3}; R: {-6, -5, -2, 3, 5}
5. D: all real numbers; R: all real numbers
Explanation:
The domain is the horizontal extent of the graph. When the graph consists only of discrete points, the domain is the list of their x-coordinates.
The range is the vertical extent of the graph. When there are only discrete points, the range is the list of their y-coordinates.
Repeated coordinate values in either case are listed only once.
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3. The points shown are (-6, -1), (-1, 3), (2, 0), (4, -2), (5, 3).
Domain (list of first values): {-6, -1, 2, 4, 5}
Range (list of second values): {-2, -1, 0, 3}
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4. The points shown are (-3, -2), (-2, 5), (0, -5), (2, 3), (3, -6).
Domain: {-3, -2, 0, 2, 3}
Range: {-6, -5, -2, 3, 5}
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5. A linear function with non-zero slope has a domain and range of "all real numbers"