What are the domain and range of f(x)= log x-5?

Mathematics

2 answers:

Nookie1986 [14]3 years ago

8 0

The answer is A
Domain: (0, infinity)
Range: ( - infinity, infinity)

Valentin [98]3 years ago

4 0

<u>The domain</u> of the <u>function</u> are all possible values for <u>variable</u> x and <u>the range</u> are all possible values for variable y.

The parrent function $y=\log x$ has

the domain $x>0;$
the range $(-\infty,\infty).$

The function $f(x)=\log x-5$ can be formed by translation the parrent function 5 units down.

The domain of the function $f(x)$ is the same as the domain of the parrent function.

Since the range of the parrent function is all real numbers, then the range of the function $f(x)$ are all real numbers too.

Answer: correct choice is A.

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