Common Core: F-IF.1
Problem 12 of 18a1-012
The graph of a function is the line segment from to , with both endpoints included. What are the domain and range of the function?
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Solution walkthrough1:50
- The domain is every -value the graph uses (the inputs). The range is every -value it uses (the outputs).
- Left and right: the segment runs from to . Domain: .
- Down and up: the lowest point has , the highest . Range: .
- Both endpoints are included (solid dots), so use : the end values belong to the domain and range.
- Traps: A swaps domain and range. B turns each endpoint into an interval. C leaves out the endpoints.