Question

Determine whether the set of ordered pairs is a function:

Answer 1

\[{ ( 5,-1), (6,-2), (8,-4), ( 10, -5)}\]

Answer 2

if there are x' values repeated then no
for example
(3,4)(3 ,9)(5,8)
^^^^^
here 3 are 2 times so nope its not function

Answer 3

why its not a function?

Answer 4

just look at x values