How do you find the domain and range for $f(x)=2x+4$ ?

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Answer 1 · 2015-06-01T19:30:24

Your function is a linear so it can accept all the real $x$ and gives as output all real $y$ .
So:
domain: all real $x$ ;
range: all real $y$ .

How do you find the domain and range for f(x)=2x+4f(x)=2x+4?