Question

HELP! Given the line y=-1/2x+5, which pair of equations represents lines that are parallel, and perpendicular, respectively?

Answer 1

Here are the possible answers
y=-1/2 x-2 and y=-2+1
y=-1/2x+9 and y=2x-1
y=1/2-2 and y =1/2x+7
y=1/2x+4 and y=-1/2x-2

Answer 2

use this to graph http://www.wolframalpha.com/
the answer second one
to find perpendicular find the inverse of slope and perpendicular you need different y-intercept

Answer 3

*parrellel* you need different y-intercept