Do the ordered pairs below represent a relation, a function, both a relation and a function, or neither a relation nor a function? (-5,9) , (3,-7) , (6,-13) , (10,-21)

Function

Step-by-step explanation:

there is no repetion of the same number as x

in geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. by extension, a line and a plane, or two planes, in three-dimensional euclidean space that do not share a point are said to be parallel.