Perpen. to y = 1/2x + 4
perpen. to: y = 4x + 6
Perpen. to y = -1/2x + 5
parallel to y = x - 7
Parallel: y = 4x + 6
Perpen. to: y = 1/3x -4
parallel to y = 3x -1
Parallel to: y = -1/2x - 2
Parallel to: y = 5x + 3
y = -3x + 2
y = 2x + 1
y = x + 1
y = -1/2x + 8
y = 5x - 1
y = 4x - 3
y = -1/4x + 1
y = -2x - 4
y = 3x + 5
