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Mathematics 7 Online
OpenStudy (anonymous):

If you are finding the line perpendicular to x + 3y = 5, what is the slope of the perpendicular line? A. -3/5 B. 1/3 C. 3 D. -3

OpenStudy (anonymous):

re-arrange the eqn to the form y=mx+b where m=slope and b=y-intercept eqn becomes y = (-1/3)x+(5/3) slope of the line is -1/3. a perpendicular line has a slope equal to negative of the reciprocal of this slope

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