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Answer:
Step-by-step explanation:
The domain is -infinity < x < infinity (or all real x)
The range is -infinity < f(x) < infinity
The graph does represent a function as it passes the vertical line test
- this means we can draw a vertical line through any point on the graph which only passes through the graph at one point.
If the first turning point of the graph does not contain a horizontal line it is also one-to-one. It's hard to tell from the graph but a strongly suspect there is no horizontal line.