Question

select the correct answer. what is the domain of the set of ordered pairs above? \\((-1,1)\\) \\((0,-1)\\) \\((5,-11)\\) \\((10,-21)\\) a. \\(\\{-1,1,10\\}\\) b. \\(\\{-1,0,5,10\\}\\) c. \\(\\{-1,1\\}\\) d. \\(\\{1,-1,-11,-21\\}\\)

Explanation:

Step1: Identify ordered pairs

The ordered pairs are $(-1, 1)$, $(0, -1)$, $(5, -11)$, $(10, -21)$.

Step2: Extract x - values (domain)

The domain is the set of all first elements (x - values) of the ordered pairs. So we take the x - values: $-1$, $0$, $5$, $10$.

Step3: Form the domain set

The set of these x - values is $\{-1, 0, 5, 10\}$.

Answer:

B. $\{-1, 0, 5, 10\}$