Respuesta :

that would be f(x) =  1/2 x - 4

Answer:

D

Step-by-step explanation:

A first order equation has the following format:

[tex]y = ax + b[/tex]

In function notation, we use y = f(x), so:

[tex]f(x) = ax + b[/tex]

In this problem:

x - 2y = 8

(-2y = 8 - x)*(-1)

2y = x - 8

y = (1/2)x - 4

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

So the correct answer is

D

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