Question

is the following pair parallel, perpendicular or neither
y=-1/5x+5 y=-1/5x-1

Answer 1

(a) If the slopes of the two lines are equal, then you have parallel lines.


(b) If the two slopes multiply to -1, then the two lines are perpendicular.


(c) If neither (a) nor (b) are true, the two lines are neither parallel nor perpendicular.

Answer 2

wait, so the answer is c?

Answer 3

Note about (a)

If the slopes are the same and the y-intercepts are the same, then you have two equations graphing the same exact line. They are essentially the same equation. One line will lie perfectly on top of the other.

Answer 4

I don't see any possible answers.