Finding delta from a graph and the epsilon-delta definition of the limit (KristaKingMath)

Learn how to use the graph of a function, and the epsilon-delta definition of the limit (precise definition of the limit), to find delta, given epsilon as a constraint.

● ● ● GET EXTRA HELP ● ● ●

● ● ● CONNECT WITH KRISTA ● ● ●

Hi, I’m Krista! I make math courses to keep you from banging your head against the wall. ;)

Math class was always so frustrating for me. I’d go to a class, spend hours on homework, and three days later have an “Ah-ha!” moment about how the problems worked that could have slashed my homework time in half. I’d think, “WHY didn’t my teacher just tell me this in the first place?!”

[heliosm]

You are possibly the only online tutor who I’ve found that truly understands the relationship between delta and epsilon.

[kimberlyvenesky]

A seven minute video from 2012 made more sense than my 50 minute calculus lecture today in college....

[EdmundoPerez]

Whoot whoot this was one of the problems i was stuck at. Thank you for your help and very uplifting with your voice. Irie ! 

[Nkonspikus]

This is seriously THE BEST explanation I've seen. Kudos for the amazing clarity in this video. Thank you

[kristakingmath]

I was actually a psychology major. Strange I know. But I was a calculus tutor all four years in college and loved it. :) Sometimes I would struggle with various math subjects, but since I enjoyed it, I would always welcome the challenge. :)

[bcnicholas]

why can't I just watch these videos instead of going to college

[shermdar_]

THANK YOU! My instructor didn't even touch on the Delta Epsilon definition in class and it comprises of half our homework. After watching nearly 5 videos, this was the first video that made finding Delta make sense!

[Doth_]

yeah this video was extremely helpful. better than the kahn academy one even

[ninjastorm]

thanks a lot! my professor taught this exact same problem but skipped a bunch of steps and explanations but now its clear to me

[isabellab.]

Thank you so much for making this video! My Calculus professor admitted that he gave up on teaching this concept, yet we're still being tested on it. This short video makes more sense than his 90 minute lectures ever did. Thanks for saving my grade!

[kristakingmath]

I'm so glad you like them! Thanks for letting me know. :)

[wilandad]

i can't believe this 7min video is all it took. i've been sweating about this for weeks

[catelynjeanslayback]

I'm pretty sure I've watched 20 videos on how to figure these problems out, but after watching yours, I finally understand it! Thank you

[naigeelassiter]

By far the best video on epps and del I’ve seen. I have a calc test in a couple of hours and this just saved my life.

[hecnev]

Somewhere between the neat penmanship and the patient explanation of this tedious definition, this video became extremely helpful. Subbed - thanks.

[dieselhead]

It is astounding how simple this is when it explained without the "professor filter." Thank you for using simple language and turning this mountain back into a mole hill.

[KampfenSoldat]

Just as I was about to give up! Thank you for actually doing a relevant example. I cannot tell you how many examples like this are oversimplified or waaay too complicated.You're amazing! :D

[rickiliang]

You are amazing. My instructor moves a million miles per hour without explaining anything. The breakdown of the math and more importantly the concept was clear and easy to understand. Keep doing what you are doing! Thanks for all the help and I will definitely be back :)

[michaelabrams]

You actually saved me by explaining this concept. All my classes are online so its hard to ask questions and you did an excellent job. I've never been more grateful.

[Yoursoul]

your videos are always so helpful. I wish professors talked like you. I can't understand why they find it impossible to teach like a normal person instead of like a walking/talking textbook.