Math 10

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1 more question.... how would I make this equation perpendicular?

The question is....

The line Y=3x-1 and a line perpendicular to it intersect at R(1,2). Determine the equation of the perpendicular line.

Can someone please tell me the steps to making that line perpendicular?

THe slope of lines perpendicular is the negative reciprocal. In this case, the equation of the line perpendicular will be
y= -1/3 x + b (you have to solve for b).

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