Which of the following pairs of lines are perpendicular?

y=3x-4 and y=-1/2 x-5
y=1/2 and y=2x-1
y=x and y=-x
Please help with this. 60 points for this!

Respuesta :

Answer:

y=x y=-x

Step-by-step explanation:

Answer:

y= 12x4

Step-by-step explanation:

i have a degree for this stuff

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