Question

The value of y varies directly with x. If y = 8, when x = 4, what is y when x = 48?

Answer 1

96

Explanation:

If Y is directly proportional (or in this case varies directly) then whatever you do to one value you do to the other.

So in this case, when Y = 8 and X = 4 that means that Y is double of X (cause 8 is double 4).

So when X = 48 all you need to do is double X which will give you 96.