<span>This characteristic of non-functions was noticed by I-don't-know-who, and was codified in "The Vertical Line Test": Given the graph of a relation, if you can draw a vertical line that crosses the graph in more than one place, then the relation is not a function.</span>
Step-by-step explanation:
the last one is the correct answer
Answer:
-15r
Step-by-step explanation:
See the attached picture:
