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Mathematics 70 Online
OpenStudy (anonymous):

I need to come up with an equation that figures in a 15% discount that kicks in after 20, so 20 has no discount, but 21 has a 15% discount. Any ideas??

OpenStudy (anonymous):

IT is a peicewise function, one that has explicitly defined domains. y= x dollars if x is 0\[\le x \le 20\] and y = x - .15x if x is \[> 20\]

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