Determine whether the line through each pair of points is perpendicular. Answer perpendicular or not perpendicular. A(3, 9), B(11, 5) and C(-3, -9), D(2, 1)

Name: Determine whether the line through each pair of points is perpendicular. Answer perpendicular or not perpendicular. A(3, 9), B(11, 5) and C(-3, -9), D(2, 1)
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The Answer of Determine whether the line through each pair of points is perpendicular. Answer perpendicular or not perpendicular. A(3, 9), B(11, 5) and C(-3, -9), D(2, 1)

Determine Whether the Line Through Each Pair of Points Is