Inverse Functions - Understand in 10 Minutes

Learn all about inverse function to include how to find the function inverse, domain and range of an inverse function, graphs, vertical line test, horizontal line test and one to one function.
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[@Max2chess]

I am 54 years old trying to learn to help my son. And I love your video. Excellent.

[@mr.pringles340]

W dad

[@jamesmccamish3901]

Thank you, great explanation in only 10 minutes!

[@ntakanande7479]

Excellent, I'm writing my trial today, Thank you I understand inverses now.

[@chris-hj2qd]

Your videos are great. Thank you; I hope karma rewards you handsomely for spreading such love of math.

[@teachingwithmisszoyaali3201]

Thank you so much..

[@innovativeisaac8835]

Thank you.

[@godglorycarrier5901]

Thank you for this video its helpfull

[@mujermujeron4713]

I am struggling with so call easy, algebra graphing linear slopes, I'm a mess any advice and I'm not young

[@sandy8271]

Thank you for this video. Why does f(x) = X^2-2 not have an inverse? We can still solve it to get +/-SQRT(X+2). Can you explain? Thanks.

[@rosepierce9382]

f(x) = sqrt(x+2) is not a function because it gives you two outputs for every x-value you plug in. That wouldn't be a function by definition. Generally, even powered functions all have this problem when you're trying to find their inverses. In other words, both -2 and 2 give you 4 when you plug them into f(x) = x^2, so when we take the inverse of this function, which is f(x) = sqrt(x), you're going to get two outputs which would be a problem. A function's domain is going to be the inverse function's range. Hope that helps.

[@willcucked5575]

because you take the output of a function and consider it as the input to get the inverse function, which mean that if there are multiple inputs possible its a relation and not a function.

[@thatomofolo452]

🤸🤸🤸💯💫

[@Carmen-sp4vf]

This video lost me at assuming that I know something about functions. I need videos/teachers to start a lesson assuming that the student knows nothing. Teach me from scratch. I have found when a teacher starts with I'm assuming that you know...they are going to gloss over everything. Nothing will really be taught.