It sounds like you're referring to a function $F(x)$ that is represented graphically, and you need to evaluate $F(-1)$ (i.e., find the value of the function when $x = -1$).

Since you mentioned a graph, evaluating $F(-1)$ means that we need to find the y-value corresponding to $x = -1$ on the graph of the function.

If you can upload the graph or describe it in more detail, I will help you determine the value of $F(-1)$.

Let me know if you need more details or have any questions.

Here are 5 related questions:

1. What are the domain and range of the function $F(x)$?
2. Is the function $F(x)$ continuous or discontinuous?
3. What is the value of $F(0)$ based on the graph?
4. Does $F(x)$ have any local maxima or minima?
5. What type of function is $F(x)$ (e.g., linear, quadratic, etc.)?

Tip: When analyzing a function graph, always check key points like intercepts and where the function changes direction to understand its behavior better.