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olga_2 [115]
3 years ago
12

Rewrite x - 2y = 8 using function notation. A) x - 2f(x) = 8 B) f(x) = -x + 8 C) f(x) = 2x + 8 D) f(x) = 1 2 x - 4

Mathematics
2 answers:
Lostsunrise [7]3 years ago
8 0
That would be f(x) =  1/2 x - 4
Valentin [98]3 years ago
4 0

Answer:

D

Step-by-step explanation:

A first order equation has the following format:

y = ax + b

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

f(x) = ax + b

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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