To find the coordinates of point D, I would need to know its location on the coordinate plane you've described. Since I cannot see the image, I can help you figure out how to find the coordinates of point D if you can provide the position of D in relation to the x-axis and y-axis.
Coordinates are typically written in the form (x, y), where x is the position along the horizontal axis (x-axis) and y is the position along the vertical axis (y-axis). If you can identify where point D is located in the grid, please share its placement, and I can help determine its coordinates.