Question

what is the domain of this relation?
(-8, -10)
(-9, -3)
(-7, -3)
(-9, 5)
{-9, -8, -7} {-10, -8, -3, 5}
{-9, -8, -7, -3} {-10, -3, 5}

Explanation:

Step1: Identify domain (x-values)

Extract first elements from each ordered pair: $-8, -9, -7, -9$

Step2: Remove duplicates, sort values

Unique sorted x-values: $-9, -8, -7$

Answer:

$\{-9, -8, -7\}$