Adding a static image to a template

I really need some help with this. I don’t know much php but I usually manage to tweek the stuff I want. But here I am blank.

I have made a child theme and I want to remove the slider that is on the homepage and also on a few others. I want to replace it with a static image 1050×327, I want to alter two or three templates and have a different static image in each.

I think I need something like if (is_home() || is_page(‘name_of_template’) to load the image, and then put that code in the different templates right where I want the image to be, but I really don’t know.

Any help would be appreciated