Using WordPress you likely deal with images a lot but how do you know where the images are stored? The easy way to find them is to log into WordPress. Navigate to the media library section.
Hover over an image that is on your site and click edit.
When the image opens in edit mode you see the file URL on the right.
You can highlight and copy this link here now you have the URL of the image and you can paste the URL wherever you need to you.