A function is a relation where each x-value has only one y-value. In this problem, all the x-values have a y-value of 3. It is a function because even though they all share the same y-value, they don't have more than one y-value. It would be a relation but not a function if one x-value had two y-values.
Step-by-step explanation: Without commission Norma makes $875 a week. Subtract that from 4500 to get 3625 you then divide that by .15 to get the amount needed to sell which is $24167
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