How did you define a function in your class notes? Does answer that definition?
"Determine whether or not the mapping of f: x → |x| is a function of x and explain your answer."
Hey, this is a question on a calculus worksheet I've been given that I've never seen before in the book and I'm not entirely sure of how to answer this. If someone could point me in the right direction, I'd appreciate it. Thanks.
Just so you're aware, the difference in arrows is important. Defunkt's arrow is correct, but your arrow means something else. (And I realize it can be hard to type in.)
Your arrow specifies domain and range. So, a complete definition of f could look like this: