How do you find the domain and range of $f(x)=1/2(x-2)$ ?

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Answer 1 · 2017-10-29T15:46:46

$x in RR$
$f(x) in RR$

We can soon see when graphing the function;
graph{0.5(x-2) [-10, 10, -5, 5]}

Hence as $x in RR$ then $f(x)$ is always defined
So $x in RR$ and $f(x) in RR$

How do you find the domain and range of f(x)=1/2(x-2)f(x)=1/2(x-2)?