Domain
Range
Discrete or continuous?

Answer:
Down here ↓↓↓↓↓
Step-by-step explanation:
Domain: 1, 2, 3, 4, 5 (x-values, no repeats)
Range: 5, 10, 15, 20 (y-values, no repeats)
Discrete, always discrete when there is not a line
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