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Mathematics 8 Online
OpenStudy (anonymous):

write down the equation of a line that is perpendicular to the line 2x + y = 7

OpenStudy (anonymous):

can transform that equation into y = -2x +7

OpenStudy (anonymous):

how about if it was a parallel line ?

OpenStudy (anonymous):

then the slope is the negative inverse m=-2, negative inverse: -1/m or -1/-2 = 1/2

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