To find the zero of the function, we need to determine the x-value where the function crosses the x-axis. This occurs when $y = 0$.

Looking at the graph, the function crosses the x-axis at $x = -2$. Therefore, the zero of the function is:

Answer: A) -2

Would you like a more detailed explanation or have any questions?

Here are five related questions to explore further:

1. What is the significance of a function's zero?
2. How do you find the slope of this linear function from the graph?
3. What is the equation of the line shown on the graph?
4. How do you interpret the y-intercept of a linear function?
5. How does the graph of a function change if its slope is reversed?

Tip: The zero of a function represents the point where the output (or y-value) is zero. It can often help in solving equations and understanding intersections.