We say that a FUNCTION is a relation define as a set of ordered pairs (x, y) where NO TWO OR MORE DISTINCT ORDERED PAIRS HAVE THE SAME FIRST ELEMENT (×).
With this definition.. 1. Tell whether the ff is a function or not. a) A math teacher and her students b) A car and its plate number c) A student and his LRN d) A pen and the color of its ink e) A person and his fingerprints
2. Explain your answer for each number 3. Give your own 5 real world examples of a Function.
