Question

PLEASE HELP!!!!




Which equation represents a direct linear variation?

A.
y = x – 3

B.
y = x2

C.
1/x

D.
1/3x

Answer 1

y=2x, option B

Answer 2

How

Answer 3

Because it is in the form y=kx.

Answer 4

k is a non-zero constant

Answer 5

direct linear variation means the ratio of the two variables must be constant

Answer 6

you can write y= 2x as y/x = 2

Answer 7

C and D aren't equations at all. A doesn't vary.