Question

For which function does f decrease by 15% every time x increases by 1?

Select the correct choice.

Answer 1

Answer:

0.85x

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Answer 2

$f(x)=0.85^{x}$ is the required function.

What is function ?

If in a mathematical statement, a set of inputs, i.e. set x having exactly one output (in set y) each, then this is called a function.

What is the required function ?

The function that decrease by 15% every time increases by 1 is,

$f(x)=(1-0.15)^{x}$

Now, simplifying it, we get,

$f(x)=0.85^{x}$

Hence, the required function is $f(x)=0.85^{x}$

Learn more about function here :

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