Why won’t my monitor turn on?

A few days ago, I got into an argument with my mom while I was on the computer and she acted out of rage, so she decided it would be a great idea (sarcasm lol) to unplug the computer from the wall while it was on. My computer is fine. Everything still plugged in and works great but my monitor won’t turn on. I’ve tried plugging everything back in but nothing seems to work. No one in my friend circle or my family is very into tech and I’m like a total noob when it comes to anything computer related. So I was wondering if anyone could please help me out on what I could do? Thank for taking the time to read my post! I hope y’all are having a wonderful day so far! :)