Question

1) y varies directly with x. If y = -4 when x = 2, find y when x = -6.

Answer 1

first, y = -4 when x = 2,
so 4=k2 (k is a symbol for variation)
solve for k, and plug the result for k into
y=k(-6)

Answer 2

I'll give you another example if you don't get this, OK?