Question

Y is inversely proportional to x^2
When x = 4, y = 3.
Find y when x= 5.

Answer 1

1.92

Explanation:

y = k/x^2

k = yx^2

k = 3 * 4^2

k =3*16=48

y = 48/x^2

y = 48/ 5^2

y = 48/25

y=1.92