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Mathematics 9 Online
OpenStudy (anonymous):

Which point is a solution of y = 3x and x + 2y = –21? Select one: a. (–3, –9) b. (–9, –3) c. (3, –9) d. (–3, 9)

OpenStudy (bibby):

You can plug in to the first equation y=3x and see that choices like C make no sense because a positive number times a positive isn't negative

OpenStudy (bibby):

same with D. -3*3\(\ne\)9

OpenStudy (anonymous):

so is..?

OpenStudy (bibby):

do your own homework kid

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