Question

4) Considere a função f(x)=3x-5, calcule: :
a) f(5)=
b) f(f(5))​

Answer 1

Resposta:

f(5)=3*5

f(5)=15

f(f(5))=3(3x-5)-5

f(f(5))=9x-45-5

f(f(5))=9x-50

x=50/9