The graph in the image represents a function with clear minimum and maximum values along the y-axis. To determine the range of the function, we observe the vertical span (y-values) of the graph.

• The function reaches its lowest point at $y = -4$.
• The function reaches its highest point at $y = 4$.

Thus, the range of the function is from $-4$ to $4$, inclusive.

The correct answer is Option D: $-4 \leq y \leq 4$.

Would you like more details or have any questions?

Here are 5 related questions:

1. How do we differentiate between the range and the domain of a function?
2. What are the properties of a function’s range?
3. Can the range of a function ever be larger than its domain?
4. What is the impact of transformations on the range of a function?
5. How can we identify the range of more complex functions?

Tip: The range of a function focuses on its vertical extent, while the domain focuses on the horizontal span of the graph.