Question

Which function is increasing?

Answer 1

The only increasing function is the last option:

$f(x) = 5^x$

Which function is increasing?

Here we only need to see that, is as x increases also do f(x). Then the function will be increasing.

The cases for exponential functions is actually more trivial than that.

• If the base is between zero and 1, then the function is decreasing.
• If the base is larger than 1, then the function is increasing.

In the given options there is only one function with a base larger than 1, which is the last option:

$f(x) = 5^x$

That is the correct option.

If you want to learn more about exponential functions:

brainly.com/question/11464095

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