The image contains a graph with no visible line or curve, only the grid and axis are displayed. To determine whether something is linear or nonlinear, we typically look for a line or curve on the graph. Since the graph is empty, it doesn't yet provide enough information to determine linearity.

If there was a line passing through the graph:

• A linear function would appear as a straight line (constant slope).
• A nonlinear function would appear as a curve or a line with varying slope.

Please clarify if there is any other data or drawing intended to be analyzed, or if the graph needs to be completed.

Would you like to ask about how to identify linearity in graphs, or any related topic?

Here are 5 related questions to explore:

1. How can you tell if a function is linear just by looking at its equation?
2. What are some common examples of nonlinear functions?
3. How does the slope of a line relate to its linearity?
4. Can a line that is not straight ever be linear?
5. How do linear functions appear differently in 3D graphs compared to 2D graphs?

Tip: A linear equation in two variables will always form a straight line when graphed!