Question

Line EF has an equation of a line y=-2x+7 and line GH has an equation of a line y=1/2x-1. These two lines are
a ) parallel because the slopes of the lines are equal
b ) perpendicular because the slopes are opposite reciprocals
c ) the same line was graphed
d ) intersecting but not at a right angle

Answer 1

@zzr0ck3r can you help?

Answer 2

shuold that say \(y=1/2x-1\)?

Answer 3

yes

Answer 4

do you know what a reciprocal is?

Answer 5

i thought the answer was b but am not sure

Answer 6

and yes

Answer 7

well it looks to me that the negative reciprocal of the slope in one equation is the slope in the other equation. So I would agree that b is the answer.