Question

I am having some trouble with Direct Variation.
How do I know if (y) varies with (x) in the following problems?

y=12x y=-5x y-6x=0

Answer 1

\(y = kx\)

y varies directly wid x, where k is a constant

Answer 2

all your given equations are of examples of direct variation, as they can be changed to \(y = kx\)

Answer 3

So as long as the equation is y=kx (y) directly varies with (x)? @ganeshie8

Answer 4

yup !

Answer 5

k can be any real number, doesnt matter negative/positive

Answer 6

@ganeshie8 Okay! Thank you so much!

Answer 7

y = kx

as x changes by something, y always changes by k times of x.

Answer 8

np :)

careful about below equation,

y= kx + b

its not a direct variation