Featured Image on Posts.

http://sharpshooters.truman.edu/2017/08/28/introduction-meeting/ I was wondering if someone could help me out with this. I use the featured post image in order to use a picture on my homepage, but on the post it self, the picture remains. Is there a way to use the featured post picture for the homepage only and not the post? I added my page as an example. I have the same problem on all the posts on my home page, so feel free to look at let me know.