Question

Dada a função f(x) = |2x – 8| calcule f(5) + f(1) - f(- 4).f(4). *
3
6
10
8
-5
​

Answer 1

Resposta:

Olá bom dia!

f(x) = |2x – 8|

f(5) = |2*5 - 8|

f(5) = |10 - 8|

f(5) = 2

f(1) = |2*1 - 8|

f(1) = |2 - 8|

f(1) = |-6|

f(1) = 6

f(-4) = |2*-4 - 8|

f(-4) = |-8 - 8|

f(-4) = |-16|

f(-4) = 16

f(4) = |2*4 - 8|

f(5) = |8 - 8|

f(5) = |0|

f(5) = 0

f(5) + f(1) - f(-4) . f(4)

= 2 + 6 - 16 . 0

= 2 + 6 - 0

= 8