Line A is perpendicular to the line with equation y = -1/3 x and the point is on line A . Which of the following is the equation of line A

Question

anonymous · Answer

Can you tell me the slope of this line y=(-1/3)x?
hint: y=mx+c is the general equation of straight line with slope m and y-intercept c

anonymous · Answer

When we we are given an equation of a line and asked to find a line perpendicular to it what we should do is to take the slope in your case  is -1/3x and get its negative reciprocal which is
-(1/m)
since your m=-1/3
its negative reciprocal is m=3
that negative reciprocal which is 3 is now you slope for the line you are trying to find
the equation of line A is then
y=3x+b
b being the y intercept of that line

anonymous · Answer

@jacjie

goformit100 · Answer

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