Question

If x and y are in direct proportion and y is 2 when x is 4, find y when x is 12.

Answer 1

Answer: 6

Explanation:

Let's start with what we know. Direct proportion is when we can multiply 1 to get the other. When y = 2 and x = 4, we can see that we multiply 2 by y to get x. So when x = 12 we can divide by 2 to get y.

12/2 = 6

So y = 6.