How do you find the range of $f(x)=x+7$ ?

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Answer 1 · 2018-04-24T11:00:43

$f(x)=x+7$

Let $f(x) =y$

$y=x+7$

This is the equation of a straight line ;

So its range is all real numbers.

$R_f$ $ϵ$ $RR$

The graph of this function is given below :-

graph{x+7 [-13.3, 6.7, -0.45, 9.55]}

Answer 2 · 2018-04-24T11:05:12

$]-oo, oo[$

$f(x)=x+7$

represents a straight line

and non-horizontal straight lines extend from $-oo$ to $oo$

so it's range will be $]-oo, oo[$

graph{x+7 [-32.47, 32.5, -16.25, 16.24]}

How do you find the range of f(x)=x+7f(x)=x+7?