Question

Dada a função afim f(x) = -2x + 3, determine:

a) f (1/3)
b) f (1/2)

Answer 1

Basta substituir os valores de x que são pedidos:
a) f(1/3) = -2.1/3 + 3
f(1/3) = -2/3 + 3
fazendo mmc:
f(1/3) = -2/3 + 9/3
f(1/3) = 7/3

b) f(1/2) = -2.1/2 + 3
f(1/2) = -1 + 3
f(1/2) = 2