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Mathematics 10 Online
OpenStudy (anonymous):

choose the equation of the line passing through the points (-2,4) and perpendicular to y=-1/2x+4. A.y=25+8 B.y=2x C.y=-2x-8 D=-2x

hartnn (hartnn):

can you find the slope of line y=-1/2x+4 ?

hartnn (hartnn):

Compare it with y=mx+c, then slope = m

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