SOLUTION: Find an equation for the line perpendicular to the line −x−5y=2 having the same y-intercept as 7x−9y=−9

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Question 1099151: Find an equation for the line perpendicular to the line −x−5y=2 having the same y-intercept as 7x−9y=−9
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
So first off, find the y-intercept of the second equation,
Set and solve for y.



So then all you need is the slope,

Perpendicular lines have slopes that are negative reciprocals,
So the first line is,


and

So,


So,

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