Equation of a Perpendicular Line
Which of the following equations represents a line perpendicular to the line 2x - 4y = 7?
A
x - 2y + 2 = 0
B
3x + 6y = 2
C
x + ½y = 5
D
4x - 8y = 3
E
x + y = 4
x - 2y + 2 = 0
3x + 6y = 2
x + ½y = 5
4x - 8y = 3
x + y = 4