Question

me ajudem por favor

f (5) = 3 f(2) = 8​

Answer 1

Resposta:

f(x) = 3x/8 + 2/5

f(5) = (3 * 5) / 8 + 2/5

f(5) = 15/8 + 2/5

f(5) = (75 + 16)/40

f(5) = 91/40

f(-2) = (3 * (-2)) / 8 + 2/5

f(-2) = -6/8 + 2/5

f(-2) = -3/4 + 2/5

f(-2) = (-15 + 8) / 20

f(-2) = -7/20

f(2) = (3 * 2) / 8 + 2/5

f(2) = 6/8 + 2/5

f(-2) = 3/4 + 2/5

f(-2) = (15 + 8) / 20

f(-2) = 23/20

Explicação passo-a-passo: