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Mathematics 8 Online
OpenStudy (anonymous):

If the graph of y = -4x + 7 is perpendicular to the graph of y = mx + 3 , then what does m equal?

OpenStudy (phi):

"m" will be the "negative reciprocal" of -4 that means multiply -4 by -1, then "flip it" i.e. write 1/number

OpenStudy (anonymous):

k thx

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