Sam says that the membership in the science club is growing linearly. at the first time meeting there were 12 members. by the fifth meeting, the club had grown to 18 members. assuming this growth continues, how many member can they expect at the seventh meeting?

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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