Concept explainers
Consider the doubling plus one function: The output is two times the input, plus one. For example, If the input is 3, the output is 7. Determine which of the following points are on the graph of the doubling plus one function:
(2,5), (2,8)! (-1 ,-1), (3, 4),
(-2, -3), (1.5,4), (0.5, 1.5)
Explain your reasoning
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