Question

The graph of which of the following will be perpendicular to the graph of y = 2x – 4?
A.
2x + y = 4
B.
4x – 2y = 4
C.
y = –2x + 8
D.
2x + 4y = 1

Answer 1

i say B but i dont know

Answer 2

Um, no its not.-4/-2 = 2, which is the gradient of the original line.

Answer 3

A

Answer 4

Well, that is -2, but you need a fraction of -1/2.

Answer 5

oh D or C i think D

Answer 6

Yes, you're correct! -2/4 = -1/2.

Answer 7

thank you for explaning it :)

Answer 8

Cool cool :)