Question

Determine o valor numérico da função Afim f(x)=3x+4

Answer 1

$a) \: f(1) = 3 \times 1 + 4 = 3 + 4 = 7 \\ \\ b) \: f( \frac{1}{3} ) = 3 \times \frac{1}{3} + 4 = 1 + 4 = 5 \\ \\ c) \: f(0) = 3 \times 0 + 4 = 0 + 4 = 4 \\ \\ d) \: f(k + 1) = 3(k + 1) + 4 = 3k + 3 + 4 = \\ = 3k + 7$