Let's solve the problem based on the graph.

1. For part (a): Finding $g(-2)$:

   • Look at the graph at $x = -2$.
   • From the image, it seems that the value of $g(x)$ when $x = -2$ is approximately $2$.

   So, $g(-2) = 2$.

2. For part (b): Finding one value of $x$ where $g(x) = -1$:

   • We need to identify the $x$-coordinates where the function $g(x)$ equals $-1$.
   • By visually inspecting the graph, it seems that the function intersects $y = -1$ at two points. One of these points appears to be $x = 1$.

Thus, one value of $x$ for which $g(x) = -1$ is $x = 1$.

Let me know if you need more details on these solutions.

Here are 5 relative questions to expand on the information:

1. What are the other $x$-values where $g(x) = -1$?
2. What is the range of the function $g(x)$?
3. Can you identify the intervals where $g(x)$ is increasing or decreasing?
4. What is the approximate minimum value of $g(x)$?
5. How can you determine if the function $g(x)$ is continuous based on the graph?

Tip: When reading values off a graph, estimate carefully based on the grid, and if possible, confirm by tracing specific points with a ruler or line tool.