SOLUTION: Find the value of k so that the line containing the points (3,k) and (−3,4) is perpendicular to the line containing the points (−7,1) and (−1,2).

Question 785281: Find the value of k so that the line containing the points (3,k) and (−3,4) is perpendicular to the line containing the points (−7,1) and (−1,2).
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
The slope of the line containing the points (−7,1) and (−1,2) is

The slope of the line containing the points (3,k) and (−3,4) is

For two lines to be perpendicular, the product of their slopes must be .

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SOLUTION: Find the value of k so that the line containing the points (3,k) and (&#8722;3,4) is perpendicular to the line containing the points (&#8722;7,1) and (&#8722;1,2).

SOLUTION: Find the value of k so that the line containing the points (3,k) and (−3,4) is perpendicular to the line containing the points (−7,1) and (−1,2).