The initial value of a function is also known as its y-intercept, which is the point where the graph intersects the y-axis (where $x = 0$).

Looking at the graph, the line crosses the y-axis at $y = 2$. Therefore, the initial value of the function is 2.

Would you like more details or have any further questions on this? Here are some related questions for further exploration:

1. What is the slope of the line shown in the graph?
2. How would you express the equation of this line?
3. How do you find the slope of a line from two points on a graph?
4. What does the initial value represent in real-world contexts?
5. How does changing the slope affect the graph of the line?

Tip: The initial value (y-intercept) can be quickly identified as the point where the line crosses the y-axis.