Respuesta :

we only know the value of f(5) therefore we need to figure out what we would put in for x in f(1/3 x) to get 5 set 1/3 x=5x=15
now if x= 15 then f(1/3 x)
            = f(1/3×15)
            = f(5)=8
and so
1/4×8−2=2−1=1

therefore the "corresponding point" is (15,1)

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