Inverse Function

pics 

Hallo guys and gals...
How is school? is it getting fun or not?
How is Mathematics?
is it getting harder or what?
well, now i am asking you this...
"have you ever tasted an ice?"
i hope you answer yes!
why?
do you know how a an ice is made?
haha...first, we have water, and then we freeze it to be ice, don't we?
now, if we reverse the process...when we have ice, and then we need water, what should we do?
yeah, we have to boil it so we get the water...
therefore, this process can be used to explain the concept Inverse Function in Mathematics.
Hey hey hey, please don't be afraid that this will be hard!
when you have motivation this, you will find a way to figure it out!
here i have two sources which explain this topic. I have a video and a power point slide.
So, it's up to you to choose what sources you want to use...
check it out!