Question

Does the equation represent a direct variation? If so, find the constant of variation.

5x = -3y

Answer 1

Can it be written in the form y = kx? Same question.

Answer 2

I think so?

Answer 3

actually I don't know

Answer 4

I think not

Answer 5

Divide both sides by -3. What do you get?

Answer 6

-1.66

Answer 7

That makes no sense. Where did x, y, and "=" go?

5x = -3y

Divide by -3

\(\dfrac{5}{-3}x = y\)

Now, I ask again, can it be written in the form y = kx, maybe with k = -5/3?

Answer 8

yeah that's right

Answer 9

Well, there you go.