Absolute value inequalities | Linear equations | Algebra I | Khan Academy

Absolute Value Inequalities

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Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts. As opposed to having to do something over and over again, algebra gives you a simple way to express that repetitive process. It's also seen as a "gatekeeper" subject. Once you achieve an understanding of algebra, the higher-level math subjects become accessible to you. Without it, it's impossible to move forward. It's used by people with lots of different jobs, like carpentry, engineering, and fashion design. In these tutorials, we'll cover a lot of ground. Some of the topics include linear equations, linear inequalities, linear functions, systems of equations, factoring expressions, quadratic expressions, exponents, functions, and ratios.

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[Peter_]

2:59
"You shouldn't be memorising any rules."

That's a very good point - it is almost always better to develop a real intuition for things.

[SMTaha-enov]

I studied my entire HIGH SCHOOL mathematics from Khan Academy.

Khan Academy you are like an Angel in the Storm.
:) :)
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[jugglingisgreat]

Thanks to you, I don't need to memorize the formula, because I actually UNDERSTAND what it means. Sal, thanks for all you do. We really appreciate it.

[laughinglauren]

Mr. Khan, it's selfless and compassionate people like you who should run the world. Thank you for all that you do!

[benfernandez-sheinbaum]

Here’s an inequality:
1 Khan Academy video > 1 week of Algebra

[paisleyharris]

12 years later and this is still the best math course out there-

[seankandie]

I love how you explain things. You've helped me so much, I can only imagine the massive impact you've had in educating the world. Thank you Sal!

[SkillUpMobileGaming]

No textbook or video explains this better than you do, Khan!
We all appreciate the hard work that you put into your videos because without you some of us would be lost.
Khan, you are such a wonderful person!

[nancygatesmustdie]

im literally so lost right now im gonna fail my test tomorrow R.I.P.

[ismellsomething]

The best part of khans video is that he doesn't just want you to memorize it he actually wants you to understand what he's talkin about. My teachers should learn from you.Keep Up the great work

[rayray]

Using intuition and thinking about the number line is great. I've been reviewing super old stuff but a textbook just had one memorize steps for each type of inequality without really explaining why you do things. With intuition I'll never forget how it works.

[Ben-qjbg]

Upvote if you're studying for finals

[darkrebel]

Omg I've gone my whole life without understanding absolute value correctly. I'm studying for the GRE and was really struggling with these problems. Great video!

[Amarey]

I always look for your tutorials first! you break it down into steps that are very simplistic. Thats how my mind needs to see it in order to do it on my own. I wanna know WHY we do something, and you tell that. Thanks so much!! Life saver for sure! ;-)

[jennamarcus]

thank you so much, this video really cleared up my confusion. you explained things so clearly

[blessed]

TYSM!!! My teacher is pregnant so she can't teach us fully, these videos really help me to study before and just get my clarification for her. You are a lifesaver :)

[isabellaxflynn]

I have a massive algebra test tomorrow and I am rewatching these vids to help prepare. This really clarifies everything for me

[hiitsmiya]

when u have finals tomorrow so u gotta remember everything u learned the entire semester

[jackberning]

There are like 3 people on youtube that teach me everything math. You are one of these people and I thank you.

[larrystylinson]

Lol I have finals tomorrow and I completely forgot how to do this