To make a curved line in Photoshop, you can use the Pen tool. Here are the steps:
1. Select the Pen tool from the toolbar or press the P key.
2. Select "Path" on the options bar.
3. Click and drag to create a curved line.
4. Adjust the curve by clicking and dragging the control point at the end of the line.
You can also use other tools such as Brush tool or Pencil tool to draw a curved line in Photoshop. Here is another tutorial that explains how to draw a curved line using the Pen tool with Paths selected. You can also check out this tutorial that explains how to draw curved lines in Photoshop using different methods.
