Question

Dada a função f(x) = 5x – 8, qual o valor de f(3)?

Answer 1

f(x) = 5x - 8

f(3) = (5.3) - 8

f(3) = 15 - 8

f(3) = 7

Answer 2

Substituindo:

F(3) = 5*3 - 8

F(3) = 15 - 8

F(3) = 7

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