SOLUTION: Side AB of rectangle ABCD is contained within the line y = 7x - 9. What is the slope of the adjacent side, BC?

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Question 745724: Side AB of rectangle ABCD is contained within the line y = 7x - 9. What is the slope of the adjacent side, BC?
Answer by tommyt3rd(5050)   (Show Source): You can put this solution on YOUR website!
For a rectangle, adjacent sides are perpendicular, therefore


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