Question

Please help with question quick!

Answer 1

Question

Answer 2

Direct variation simply means that the ratio between x and y is a constant value, e.g., there is some constant k such that:

\(\Large \dfrac{ y }{x }=k\)

or equivalently:

\(\Large y=kx\)

So for which of your choices is that NOT true?

Answer 3

a and d right? @DebbieG

Answer 4

It is only 1 of those 2. So you're half right. :)

Answer 5

so which one is it a or d

Answer 6

can you look at what I said about direct variation, and figure out which?

Answer 7

In which of those equations is it NOT of the form:

y=kx ?

Answer 8

A

Answer 9

That's correct.

In D, you have k=1/9, so that one IS direct variation.

Answer 10

So A does NOT show a direct variation between x and y am I correct?

Answer 11

That's correct. that isn't the relationship between x and y, because you can't write

y=kx

instead, you have y=k/x

Answer 12

thnx I aced my test