phase_sum.jpg
This image displays a two-dimensional line graph set against a light gray background with white grid lines.

The vertical y-axis on the left is labeled "Amplitude (Arbitrary)". The numerical scale runs from -2 at the bottom to 2 at the top, with tick marks and labels for -2, -1, 0, 1, and 2.

The horizontal x-axis at the bottom is labeled "Time (Arbitrary)". The numerical scale starts at 0.0 on the left and has major tick marks labeled 0.0, 2.5, 5.0, and 7.5.

Plotted on this graph is a single, solid red horizontal line. This line lies perfectly flat along the y=0 mark, extending from the start of the x-axis (x=0) all the way to the right edge of the chart area.

To the right of the grid, there is a legend box titled "Wave". Inside the legend, next to a small red line segment, is the text "sum", indicating that the red line represents the sum of waves.
This description was generated automatically. Please feel free to ask questions if you have further questions about the nature of the image or its meaning within the presentation.