Respuesta :

Checking the graph:-  when x = 1 y = 0  so it cant be y = x^4

y = log4 x
is the same as

x = 4^y 

Checking the graph,  when x = 4, y = 1
Plugging these into the above 4 = 4^1 = 4

So the correct choice is first one 

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