To find the $y$-intercept of the line, we need to identify the point where the line crosses the $y$-axis on the graph provided.

From the graph in the image:

1. The $y$-intercept is the point where the line meets the $y$-axis, which is when $x = 0$.
2. Observing the graph, the line intersects the $y$-axis at $y = -1$.

Therefore, the correct answer is -1.

Would you like a detailed explanation on finding $y$-intercepts?

Here are some related questions to expand on this topic:

1. How do you find the slope of a line from a graph?
2. What is the equation of a line in slope-intercept form?
3. How do $x$- and $y$-intercepts help in sketching graphs?
4. What happens to the $y$-intercept if you change the slope?
5. How can you determine the $y$-intercept from an equation directly?

Tip: Remember, the $y$-intercept is always the point where $x = 0$ on a graph.