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nikklg [1K]
1 year ago
7

What would i put in, in the blanks? please help, i don’t get this

Mathematics
1 answer:
pychu [463]1 year ago
5 0

Answer:

<u>Parent function</u>

f(x)=\log_2(x)

Since we cannot take logs of zero or negative numbers, the domain is (0, \infty) and there is a vertical asymptote at x=0.

There are no horizontal asymptotes and the range is (- \infty,\infty).

The end behaviors of the parent function are:

\textsf{As } x \rightarrow 0^+, f(x) \rightarrow - \infty

\textsf{As } x \rightarrow \infty, f(x) \rightarrow \infty

To determine the attributes of the given function, compare the given function with the parent function.

<u>Given function</u>

<u />f(x)=- \log_2(x)+5

The given function is <u>reflected in the x-axis</u>.  Therefore, the end behaviors are a reflection of those of the parent function:

\textsf{As } x \rightarrow 0^+, f(x) \rightarrow \infty

\textsf{As } x \rightarrow \infty, f(x) \rightarrow - \infty

As the given function is <u>translated vertically</u> (5 units up) only, the domain, range and asymptote will not change, since the function has not been translated horizontally.

\textsf{Domain}: \quad (0, \infty)

\textsf{Range}: \quad (- \infty, \infty)

\textsf{Asymptote}: \quad x=0

<u>Conclusion</u>

The function f(x) is a \boxed{\sf logarithmic}} function with a \boxed{\sf vertical}} asymptote of \boxed{x = 0}.  

The range of the function is \boxed{(- \infty, \infty)}, and it is \boxed{\sf decreasing} on its domain of \boxed{(0, \infty)}.  

The end behavior on the LEFT side is as \boxed{x \rightarrow 0^+}, \boxed{f(x) \rightarrow \infty}, and the end behavior of the RIGHT side is \boxed{x \rightarrow \infty}, \boxed{f(x) \rightarrow -\infty}.

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