algebra 2 one to one and onto functions

A description of one to one functions and onto functions for algebra 2

[Sharnjit]

this is outstanding explanation ..i just understand this concept in just matter of seconds ... thanks to upload ...

[modisaemangmanthe]

I like your energy, and the way you simplify this. Can you be my lecturer at University of Johannesburg?

[skiable]

She's amazing! Thank you finally got it!

[madpilot]

holy cow you simplified this so much and i got a test towmrrow and was totally unprepared

[outerspce]

thank you so much i finally get this!!!

[thaum]

Thanks, but what if you have the function? EX:
F(x) = 5x + 3
I can do the 1:1 by F(a) = F(b), but got stuck on checking if it's onto.

Thanks

[prachi]

Can I say that when codomain becomes range then it's onto function?

[kamee]

Why dont you just say a one to one, x's dont repeat and y's dont repeat.