A) how many arrangements are there of revisited with vowels not in increasing order—that is, an i before one (or both) of the es? (b) how many arrangements with no consecutive es and no consecutive is? (c) how many arrangements with vowels not in increasing order and no consecutive es and no consecutive is?

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

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they can both be solutions depends on the equation

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what is the equation? ?

1 and 0

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