Line AB contains (0, 4) and (1, 6) Line CD contains points (2, 10) and (−1, 4). Lines AB and CD are:
a. parallel because the slopes are the same
b. perpendicular because the slopes are the same
c. parallel because the product of the slopes is −1
d. perpendicular because the product of the slopes is −1

Question

Line AB contains (0, 4) and (1, 6) Line CD contains points (2, 10) and (−1, 4). Lines AB and CD are:
a. parallel because the slopes are the same 
b. perpendicular because the slopes are the same
c. parallel because the product of the slopes is −1 
d. perpendicular because the product of the slopes is −1

gorv · Answer

find the slope of both line
if slope are equals than parallel
if product of their slope is -1 then perpendicular

gorv · Answer

a

keana · Answer

Oh. Okay, I forgot to find the slope. Thanks!