Brandon has a 55-gallon fish tank. he estimates he can drain the tank at an average rate of 11 gallons per minute. in a linear model of this situation, x represents the number of minutes the tank has been draining. relative to this situation, what does the y-intercept represent?

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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