If two lines are perpendicular, which statement must be true?

A. The product of their slopes is 1.
B. Their slopes are opposites.
C. Their slopes are equal.
D. The product of their slopes is -1.

Question

If two lines are perpendicular, which statement must be true?

 		A.	The product of their slopes is 1.
 		B.	Their slopes are opposites.
 		C.	Their slopes are equal.
 		D.	The product of their slopes is -1.

turingtest · Answer

@DHASHNI as per our new code of conduct, simply providing the answer without explanation is not acceptable on this site. Please try to elaborate and teach when answering questions. Thanks you.

anonymous · Answer

yeah sure !!!!!

anonymous · Answer

@TuringTest people do it all the time . I didn't want an explanation for that or i would have asked for one. I simply wanted to know the answer to the problem given.