Identify the technology that the statements describe. Core Data is a feature of Cocoa Touch that helps programmers organize data logically.
Git is a version control system that helps to manage different versions of a software program and stores the history of all modifications.

A function can't have x repeating any of the same number twice for example the first one (2, -2), (1, 5), (-2, 2), (1,-3), (8,-1) you have two 1's (1,5) and (1,-3) the x is the first number. Now a function can have the same y value. So your answer is (3, -1), (7,1), (-6,-1), (9,1), and (2,-1) you have to have all different x values in order for it to be a function. Hope that helps.

Explanation:

answer; thats a symptom of hallucinogens,drug abuse;

leaning back,   no eye contact,   fidgeting in the seat