$y = - 5^{x}$ $y=-5^x$ , find domain and range?

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Answer 1 · 2018-05-02T11:48:26

$x inRR,f(x)<0$

We know that $y=a^x$ can take any value for $x$ , so the domain is $x inRR$ .

However, $y=-5^x$ is unable to reach zero, as $xto-oo$ $y->0$ , and since it is $-f(x)$ all values will be negative. Range: $f(x)<0$

y=-5^xy=−5xy=-5^x, find domain and range?