Q. Look at this set of ordered pairs:(15,2)(6,11)(5,1)Is this relation a function?Choices:(A) yes(B) no
Understand function definition: Step 1: Understand the definition of a function. A relation is a function if each input (x-value) has exactly one output (y-value).
Check for x-value duplicates: Step 2: Check the x-values in the ordered pairs for duplicates. The pairs are (15,2), (6,11), and (5,1).
Confirm unique x-value pairs: Step 3: Since the x-values 15, 6, and 5 are all different, each x-value is paired with exactly one y-value.