SOLUTION: Give the equation of the line that is perpendicular to the line y = -3x + 7 and passes through point (0, -6).

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Question 461919: Give the equation of the line that is perpendicular to the line y = -3x + 7 and passes through point (0, -6).
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
The equation is equivalent to y + 3x = 7.
Any line perpendicular to this must then have the form 3y - x = c, where c is an undetermined constant. To find the value of c, use the coordinates of the given point into this line:
3*(-6) - 0 = c ==> c = -18.
Hence the equation of the line is 3y - x = -18.