Which expression is the exponential form of /9y ?

For this case we have the following expression:
 root (9y)
 We can in this case use the properties of the power to write the expression in an equivalent way
 Rewriting we have:
 (9y) ^ (1/2)
 
 (9y) ^ (1/2)
 option 3

You can find it by multiplying the areas it show u