Answer :
Option b
y = 3/x + 11
Switch x and y
x = 3/y + 11
Cube both sides
x^3 = y + 11
Subtract 11
y = x^3 - 11
y = 3/x + 11
Switch x and y
x = 3/y + 11
Cube both sides
x^3 = y + 11
Subtract 11
y = x^3 - 11