Mathematics
Easy

Question

# Suppose y varies inversely as the square of x. If x is multiplied by 4 , which of the following is true for the value of y?

Hint:

## The correct answer is: It is multiplied by

### We have to find the value of y  when y varies inversely to the square of x.We have, y = If x becomes 4x, then: y = = So, y is multiplied by .Hence, the correct option is D.

Instead of taking y= k/x², we could also have taken yx² = k, where k is a constant.