Question

PLEASE HELP QUICKK
Which slopes could be the slopes of perpendicular lines?

Question 1 options:

1/2 and 2


8 and -1/8


2 and 2


1 and -1


0 and undefined

Answer 1

The answer would be:

8 and -1/8

1 and -1

And could be 0 and undefined, but I'm not 100% sure