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Mathematics 21 Online
OpenStudy (anonymous):

How to graph 3x + 5y = -15

OpenStudy (daffy_duck):

first try to make the equation into y=mx+b.

OpenStudy (daffy_duck):

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OpenStudy (daffy_duck):

y = -3/5x -3

OpenStudy (daffy_duck):

since the intercept is -3, that means that the point on the y-axis is (0, -3). Plot that first, then use the slope (-3/5) and make the next point.

OpenStudy (daffy_duck):

the slope rise/run means that you have to go down 3 and across 5 to the right. from point (0, -3), that should equal (-3, 2). just connect those two points with a long line and that's your graph

OpenStudy (daffy_duck):

i mean it should be -6, 2

OpenStudy (anonymous):

my suggestion would be to leave it alone, find the x and y intercepts in one step, and graph those

OpenStudy (daffy_duck):

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