Question

Which does *not* show a direct variation between x and y?




A. y=4/x




B.y= 0.5x




C. y=7x




D.y= x/9

Im thinking it should be "B" am I right?

Answer 1

@AlexandervonHumboldt2

Answer 2

hmmm

Answer 3

oh wait.0 B is not correct for sure.

Answer 4

y=0.5x k=0.5 satisfies y=kx form. so it is direct

Answer 5

okay hmm

Answer 6

What about 7x its a whole number?

Answer 7

answer is not corerect, but 7 is a whole numbner

Answer 8

What about D?

Answer 9

no. k=1/9 in this case.

Answer 10

Wait so how would it be A then

Answer 11

yes it is A.

it has form y=k/x not y=kx

Answer 12

Because it fliped ahhh

Answer 13

^*it is

Answer 14

Thanks @AlexandervonHumboldt2

Answer 15

basically, a direct variation passes though 0. y=4/x is a hyperbola, which cannot be in 0.

Answer 16

definition definition and definition

Answer 17

i mean orgin

Answer 18

what does it mean by direct variation between one aspect and another aspect