#1**+2 **

If it is of the form f(x) = x k

then 18=2k and k= 9

conversely, it COULD be yk = x

then 18k = 2 k = 1/9 but convention would likely make it the FIRST answer k= 9

ElectricPavlov Oct 30, 2018

#1**+2 **

Best Answer

If it is of the form f(x) = x k

then 18=2k and k= 9

conversely, it COULD be yk = x

then 18k = 2 k = 1/9 but convention would likely make it the FIRST answer k= 9

ElectricPavlov Oct 30, 2018