Respuesta :

If y is inversely proportional to 1/roots then:

Y= k/root x

Find the value of the constant k

When y=7 and x=64

7=k/8
k= 56 (7x8)

When y=8

8=k/root x

Root x = k/8 since we know k = 56

Root x= 56/8

Square both sides

x=49