Suppose y varies inversely as the square of x. When y is 7 and x is 2. Find y when x = 3. Find the inverse variation equations.

Question

Inverse Variation Equation

Answer 1

y = k/x²

7 = k/2²

7 = k/4

28 = k

 

y = 28/x²

y = 28/3²

y = 28/9

y = 3 1/9