Question

If y varies directly as x and if x = -6when y = 2 how do you find x when y = -9, -8,-6, -5, -4, -3?

Answer 1

`y=-9 rarr x=-17`
`y=-8 rarr x=-16`
`y=-6 rarr x=-14`
`y=-5 rarr x=-13`
`y=-4 rarr x=-12`
`y=-3 rarr x=-11`

Explanation:

If `y` varies directly as `x`, then when `x` is increased or decreased by a number `n`, so will be `y`.

If `y=2` when `x=-6` then:

`y=-9=2-11 rarr x=-6-11=-17`
`y=-8=2-10 rarr x=-6-10=-16`
`y=-6=2-8 rarr x=-6-8=-14`
`y=-5=2-7 rarr x=-6-7=-13`
`y=-4=2-6 rarr x=-6-6=-12`
`y=-3=2-5 rarr x=-6-5=-11`