qre
qre
25-10-2016
Mathematics
contestada
passes through (3,1) ,perpendicular to y=-3x+2
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HTGREAT
HTGREAT
25-10-2016
slope would be 1/3 so do rise over run from your point
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AndyBryer
AndyBryer
25-10-2016
As it is perpendicular to y = -3x + 2 and the gradient of that is -3 we know that the gradient of our line must be -1 / -3 = 1/3.
Now we have the general equation of a line m = (y-y1)/(x-x1) to which we can substitute our values.
1/3 = (y - 1)/(x - 3)
x - 3 = 3 * (y - 1)
x - 3 = 3y - 3
x = 3y
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