Question

ada a função f(x) = 1/2x - 3/4, calcule: f (2)x f(1) f(0)

Answer 1

Vamos lá

f (x) = 1/2 . x - 3/4

f (2) x f (1) = (1/2 . 2 - 3/4) x (1/2 . 1 - 3/4)

= ((4 -3)/4) x ((2 - 3)/4)
= (1/4) x (- 1/4)
= - 1/16

f (0) = 1/2 .0 - 3/4 = - 3/4

Espero ter ajudado !!!

Answer 2

Bom dia!
Vamos lá:

Como $\mathtt{f(x) = \dfrac{x}{2} - \dfrac{3}{4} }$, então:

$\mathtt{f(2) \times f(1) = \left(\dfrac{2}{2} - \dfrac{3}{4}\right) \times \left( \dfrac{1}{2} - \dfrac{3}{4} \right) = \dfrac{1}{4} \times \left(-\dfrac{1}{4}\right) = -\dfrac{1}{16} }$

E

$\mathtt{f(0) = \dfrac{0}{2} - \dfrac{3}{4} = -\dfrac{3}{4}}$

$\boxed{\textbf{Resposta: } \mathbf{f(1) \times f(2) = -\dfrac{1}{16} \ e \ f(0) = -\dfrac{3}{4} } }}$