Question

Please help me out with this..........

Answer 1

x = 1

Explanation:

Given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 12 when x = - 2

k =
`(y)/(x)` =
`(12)/(-2)` = - 6

y = - 6x ← equation of variation

When y = - 6, then

- 6 = - 6x ( divide both sides by - 6 )

x = 1