To animate a line graph in PowerPoint, you need to open the slide, draw the Graph add the labels and then animate the graph as explained here.

Learn how to insert curved text in PowerPoint around a circle. You can use WordArt to curve text in PowerPoint slide on Windows 10.

How to Make a Line Plot in PowerPoint. If you need a line chart, Microsoft PowerPoint 2010 can help you plot your line graph on any of the slides that make up your presentation.