Question

Pleaseeeeee help me :)

Answer 1

y =
`(1)/(4)` x

Explanation:

Given that x and y vary directly then the equation relating them is

y = kx ← k is the constant of variation

To find k use the pair of values x = 12, y = 3

k =
`(y)/(x)` =
`(3)/(12)` =
`(1)/(4)`

y =
`(1)/(4)` x ← equation of variation