SOLUTION: perpendicular to the line 7x+y=-55; contains the point (-7,-7)

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Question 630272: perpendicular to the line 7x+y=-55; contains the point (-7,-7)
Answer by graphmatics(170) About Me  (Show Source):
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Rewrite the line as y=-7x-55. So the slope of the line is -7. Therefore the slope of a perpendicular line is 1/7. For the equation of the perpendicular line thru the point (-7,-7) we have y+7=(1/7)(x+7).