How do you find the domain and range of $y - 4 = 1(x - 4)$ ?

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Answer 1 · 2017-11-05T12:24:15

Domain: $RR$
Range: $RR$

$y-4=1(x-4)$ is equivalent to $y=x$

This equation is defined for all Real values of $x$ , so the Domain is all Real values: $RR$ .

The Range (the values possible for the dependent variable $y$ ) is equal to the Domain, so the Range is all Real values: $RR$ .

(Actually, the Domain and Range could be considered to be the much larger collection of all Complex values: $CC$ ).

How do you find the domain and range of y - 4 = 1(x - 4)y - 4 = 1(x - 4)?