Question

Considere a função quadrática f(x) = -x^2 + (3/2)x + 1. Calcule: a) f(-1) b) f(1/3) c) f(0,5)

Answer 1

Explicação passo-a-passo:

f(x) = -x^2 + (3/2)x

a) f(-1) = -(-1)^2 + (3/2)(-1)

= -1 - 3/2

= - 2,5

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

= -1/9 + 1/2

= 7/18

c) f(0,5) = -(0,5)^2 + (3/2)(0,5)

= - 1/4 + 3/4

= 2/4 = 1/2