Question

Will Medal and Fan. Thank you.
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

Answer 1

Direct variation is the form of \[y=kx\] where k is a constant

Answer 2

Ok.

Answer 3

So which is it?

Answer 4

Is it D? It seems to not match the formula.

Answer 5

Are you sure, d is the same thing as saying \[y=\frac{ x }{ 9 } \implies y = \frac{ 1 }{ 9 }x\]

Answer 6

Not anymore, Hmm.

Answer 7

One second.

Answer 8

Would it be A then?

Answer 9

Correct :)

Answer 10

\[y=\frac{ 4 }{ x }\] that's not direct!

Answer 11

Thank you!

Answer 12

Yw