How do you find the domain and range of $sqrt(8-x)$ ?

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Answer 1 · 2017-03-02T05:21:19

Domain : $x in (-oo , 8)$
Range : $y in (0, oo)$

For Domain,

$8-x >=0$

$x<=8$

Domain : $x in (-oo , 8)$

For Range,

$y= sqrt(8-x)$

Range : $y in (0, oo)$

How do you find the domain and range of sqrt(8-x)sqrt(8-x)?