iPad Air Model A1474 how to reset/erase

My old iPad air has been intermittently displaying random lines toward the top of the screen then freezing with only the Apple Logo displayed. I'm hoping that this is only a memory shortage problem. I've tried holding power and home buttons which will get the device working again...for a short time. At this point I'd be happy to just erase all apps and get a fresh start. Is there an easy way to do that? Thanks for any help.