Si f(x) = 3/(x + 2) es una función inversamente proporcional, calcula: f(4) – f(7)
a. 1/2
b. -3
c. 1/6
d. 2/5
a. 1/2
b. -3
c. 1/6
d. 2/5
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Respuesta:
Respuestas totales: 2
Explicación paso a paso:
f(x) = 3/(x + 2) calcula: f(4) - f(7)
f(4) = 3/(4 + 2) = 3/6
f(7) = 3/(7 + 2) =3/9
f(t) =3/6 - 3/9 = 1/6