Question

look at this set of ordered pairs:
(6, 10)
(-5, 17)
(4, 5)
(15, 15)
(-20, -11)
(14, 17)
is this relation a function?
yes
no

Explanation:

Step1: Identify all input values

Input values (x-coordinates): $6, -5, 4, 15, -20, 14$

Step2: Check for repeated inputs

No input value appears more than once.

Step3: Apply function definition

A relation is a function if each input has exactly one output. Since all inputs are unique, this condition is satisfied.

Answer:

yes