Question

Which equations show a direct variation between x and y when solved for y?



Choose all answers that are correct.



A.3/4y=6x




B.y=2/5x-2/5




C.y=27x




D.2y=x

Answer 1

@iGreen

Answer 2

a direct variation is of the sort y=kx where k is some constant

Answer 3

check your options and see which one of them is like that

Answer 4

^^^^^^^^^^^^^^^^^^

Answer 5

C?

Answer 6

@iGreen

Answer 7

Yep, you got it..but there's one more..

Answer 8

You gotta simplify it..

Answer 9

so D?

Answer 10

No.. D simplifies to:

\(y = \dfrac{x}{2}\)

Answer 11

\(\dfrac{3}{4}y = 6x\)

Divide 3/4 to both sides, or multiply by 4/3.

What's 4/3 * 6?

Answer 12

8

Answer 13

Yep, that gives us:

\(y = 8x\)

So what are your answers?

Answer 14

a?

Answer 15

And..?

Answer 16

What else did you say was the answer up there?

Answer 17

what do you mean?

Answer 18

There are two answers..

Answer 19

You said that the answer was C up there..so our answers are A and C.

Answer 20

oh yeah my bad lol ok so A and C

Answer 21

@iGreen it was A,C,
and D