Question

6) Dada a função de primeiro grau f(x) = 2x + 3, calcule:
a) f(0)
b) f(– 1)
c) f(2)
d) f(-2)​

Answer 1

Resposta:

$a)f(0) = 2 \times 0 + 3 \\ f(0) = 3 \\ \\ b)f( - 1) = 2 \times ( - 1) + 3 \\ f( - 1) = 1 \\ \\c) f(2) = 2 \times 2 + 3 \\ f(2) = 7 \\ \\d) f( - 2) = 2 \times ( - 2) + 3 \\ f( - 2) = - 1$