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Mathematics 7 Online
OpenStudy (chris215):

Which one of the following is a function? 4x - 2y2 = 9 4x2 - 2y2 = 9 4x - 2y = 9

OpenStudy (campbell_st):

have you tried graphing them..?

OpenStudy (campbell_st):

or an alternative is, for each equation, make y the subject

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