It seems like you might be referring to a problem involving the function $f(x) = x - 4$ and some context involving boxes. Could you clarify what the two "boxes" represent? Are they placeholders for values, coordinates, or some other element related to the function?

In any case, let’s start with a brief exploration of the function $f(x) = x - 4$.

1. Basic properties: This is a linear function with a slope of 1 and a y-intercept of -4.

   • The slope (m = 1) means the graph rises by 1 unit for every increase in x.
   • The y-intercept (b = -4) is where the graph crosses the y-axis (at the point (0, -4)).

2. Graph of the function:

   • The graph would be a straight line. At $x = 0$, the value of $f(x)$ is -4, and as $x$ increases, the line goes upward with a slope of 1.

If you have a specific question or need more details, like filling in certain values for the "boxes," feel free to let me know!

Would you like further details or have any questions?

Here are 5 related questions that might help you explore this topic further:

1. What is the slope of the function $f(x) = 3x - 5$, and how does it compare to $f(x) = x - 4$?
2. What is the x-intercept of $f(x) = x - 4$?
3. How does shifting the function $f(x) = x - 4$ up or down affect its graph?
4. How would you write the equation of a line that is parallel to $f(x) = x - 4$?
5. How do you calculate the derivative of a linear function like $f(x) = x - 4$?

Tip: When working with linear functions, always check how changes in slope and y-intercept affect the graph's steepness and position.