Question

sabendo que q função e:
f(×)=2×-4
calcule:
f(-2)
f(-1)
f(0)
f(+1)
f(+2)
​

Answer 1

Explicação passo-a-passo:

f(x)=2x-4

f(-2)=2.(-2)-4=-4-4=-8

f(-1)=2.(-1)-4=-2-4=-6

f(0)=2.(0)-4=0-4=-4

f(+1)=2.(1)-4=2-4=-2

f(+2)=2.(2)-4=4-4=0

Answer 2

Explicação passo-a-passo:

F(x) = 2x -4

F(-2)

F(-2) = 2 . (-2) - 4

F(-2) = -4 - 4

F(-2) = -8

F(-1)

F(-1) = 2 . (-1) - 4

F(-1) = -2 - 4

F(-1) = - 6

F(0)

F(0) = 2 . 0 - 4

F(0) = -4

F(1)

F(1) = 2 . 1 - 4

F(1) = 2 - 4

F(1) = -2

F(2)

F(2) = 2 . 2 - 4

F(2) = 4 - 4

F(2) = 0