Which of the following pairs of lines are perpendicular? Select all that apply
A. y = 2x + 5 and y = - 2x + 5
B. y = - 4x + 5 and y = 1/4x + 5
C. y = 2 and y = - 2
D. y = x + 4 and y = - x + 4
E. y = - 3 and x = - 3
F. y = 2/5x + 5 and y = 5/2x - 2
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Home » Mathematics » Which of the following pairs of lines are perpendicular? Select all that apply A. y = 2x + 5 and y = - 2x + 5 B. y = - 4x + 5 and y = 1/4x + 5 C. y = 2 and y = - 2 D. y = x + 4 and y = - x + 4 E. y = - 3 and x = - 3 F. y = 2/5x + 5 and y = 5/2x - 2