Question

Can someone please explain to me what perpendicular means?

Answer 1

90 degrees.

Answer 2

In equation of lines it means that the slope is equal to the negative reciprocal

m=3 a slope perpendicular to that is -(1/3)

Answer 3

what is a negative reciprocal?

Answer 4

What's the context?

Answer 5

Hmm in fractions getting the reciprocal is basically switching the numerator and denominator

so lets say

2/3
the reciprocal would be
3/2
the negative reciprocal will be
-3/2

Answer 6

The lines are perpendicular because they form 90 degree angles.