Find the Range f(x)=x+2 if x=-4

$f (x) = {\begin{cases} x + 2 & x < - 4 \\ x - 2 & x \geq - 4 \end{cases}$

The range is the set of all valid $y$ values. Use the graph to find the range.

$(- \infty, \infty)$

Find the Range f(x)=x+2 if x<-4; x-2 if x>=-4

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