If AB is parallel to CD and the slope of AB is -3, what is the slope of CD?

A. -one third
B. -3
C. one third
D. 3

Question

If AB is parallel to CD and the slope of AB is -3, what is the slope of CD?


 		A.	-one third
 		B.	-3
 		C.	one third
 		D.	3

kate_kat · Answer

for a line to be parallel it has to have the same slope but a different intercept

kate_kat · Answer

so what do you think the answer is?

jordans_openstudy · Answer

ohh wait wouldnt it be 3?

kate_kat · Answer

you said the slope of AB is -3

jordans_openstudy · Answer

I copied it from my course. I am rusty with this so kinda confused

kate_kat · Answer

ok, if a line has to have the same slope to be parallel and AB is - 3 thats means CD would have to be -3, lol im doing the same stuff in my math class and it can get confussing

jordans_openstudy · Answer

ahhh i see now ! I havent done this stuff in years so i was like ehh haha

jordans_openstudy · Answer

Thanks !

kate_kat · Answer

well im glad i could help :)

jordans_openstudy · Answer

I appreciate it