Question

What is a function, range, domain and the operations of functions.....?

Answer 1

Hmm... A function.
Do you know what a relation is?

Answer 2

I kinda Forgot that...

Answer 3

Why am I not surprised? haha

Answer 4

Anyway, a relation is any set of ordered pairs. It could be
{(0,0) , (1,1) , (2,2) , (3,3)}
{(1,0) , (0,1) , (-1,0) , (0,-1)}
{(0,2) , (1,2) , (2,3) , (4,9)}

do these look familiar?

Answer 5

@EngrChong ???