1. You requested to include the y and z axes in a graph or plot. 2. The y-axis is the vertical axis representing the dependent variable in 2D graphs. 3. The z-axis is the third dimension axis used in 3D graphs to represent depth or another variable. 4. To visualize y and z axes, you need a 3D coordinate system where x, y, and z axes are perpendicular to each other. 5. In 2D graphs, only x and y axes are shown; adding z requires 3D plotting tools. 6. If you want a specific function or graph including y and z axes, please provide the function or context.