Which of the following best describes the relationship between line x and line y?
Line x passes through (–3, –5) and (–7, –3).
Line y passes through (4, 7) and (12, 3).

A. neither perpendicular nor parallel

B. perpendicular

C. parallel

D. They are the same line.

Question

Which of the following best describes the relationship between line x and line y?
Line x passes through (–3, –5) and (–7, –3).
Line y passes through (4, 7) and (12, 3).


A. neither perpendicular nor parallel

B. perpendicular

C. parallel

D. They are the same line.

hartnn · Answer

Find the slope of both the lines, can you ?

anonymous · Answer

for the first line is the slope -2/4

hartnn · Answer

which is -1/2 and is correct :)

anonymous · Answer

for the second line is the slope 4/8?

hartnn · Answer

try again for 2nd ?

anonymous · Answer

4/-8

hartnn · Answer

yes, thats correct, which simplifies to ??

anonymous · Answer

1/-2

hartnn · Answer

so, both slopes are equal, right ? 
Parallel lines have same slope :)

anonymous · Answer

YES! so its answer C! Thanks!