# SOLUTION: Use slopes to show that the square with vertices at (-2,5), (4,5), (4,-1), and (-2,-1)has diagonals that are perpendicular.

Algebra ->  Algebra  -> Linear-equations -> SOLUTION: Use slopes to show that the square with vertices at (-2,5), (4,5), (4,-1), and (-2,-1)has diagonals that are perpendicular.      Log On

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 Algebra: Linear Equations, Graphs, Slope Solvers Lessons Answers archive Quiz In Depth

 Question 119721: Use slopes to show that the square with vertices at (-2,5), (4,5), (4,-1), and (-2,-1)has diagonals that are perpendicular.Answer by checkley71(8403)   (Show Source): You can put this solution on YOUR website!SLOPE BETWEEN (-2,5) & (4,-1) IS (-1-5)/(4+2)=-6/6=-1 SLOPE BETWEEN (4,5) & (-2,-1) IS (-1-5)/(-2-4)=-6/-6=1 THESE TWO SLOPES ARE NEGATIVE RECIPRICALS OF EACH OTHER THUS THESE LINES ARE PERPENDICULAR.