To express a function $f(x)$ in standard form, we need more details on the type of function you're referring to. For example:

1. For a quadratic function, the standard form is: $f(x) = ax^2 + bx + c$ Where $a$, $b$, and $c$ are constants, and $a \neq 0$.

2. For a linear function, the standard form is: $f(x) = ax + b$ Where $a$ and $b$ are constants.

3. For exponential functions, the standard form can be: $f(x) = ab^x$ Where $a$ and $b$ are constants.

If you have a specific function in mind, please share it and I’ll help express it in standard form!

Do you want more details or have any questions?

Here are some questions related to this:

1. How do you convert a quadratic function into standard form?
2. Can a cubic function have a standard form?
3. How do you express a rational function in standard form?
4. What is the significance of $a$, $b$, and $c$ in the quadratic standard form?
5. How is the vertex form of a quadratic function related to its standard form?

Tip: In quadratic functions, the sign of $a$ tells us if the parabola opens upwards or downwards!