Determine whether the following functions are power functions. If yes, identify the values of and . If not, write "NONE" for both and .
a)
i) Is a power function?

ii)

iii)

b)
i) Is a power function?

ii)

iii)

c)
i) Is a power function?

ii)

iii)

d)
i) Is a power function?

ii)

iii)