Use the following function rule to find f(25).

Question

f(x) =
–4

x

f(25) =

must be a whole number

Answer 1

To find $f(25)$ using the function rule $f(x)=-\frac{4}{x}$, we will substitute $x$ with 25:

$$f(25)=-\frac{4}{25}$$

This fraction simplifies to -0.16, which is not a whole number. Since the question specifies that the result must be a whole number, this implies there may have been an error in interpreting the function or restrictions.

If the function is indeed $f(x)=-\frac{4}{x}$, then $f(25)=-\frac{4}{25}$ is the correct calculation, but it does not produce a whole number.

Please verify the function or the requirements. If you need a whole number result, we would need either a different function rule or specific $x$ values that yield whole numbers.