Answer:
A. {-1, 0, 5, 10}
Step-by-step explanation:
Given:
(-1, 1), (0, -1), (5, -11), (10, -21)
Required:
Domain of the set of the above ordered pairs
SOLUTION:
Domain of any set of ordered pairs includes all the x-values in the set of ordered pairs, while the y-values in the set of the ordered pairs makes up the range.
The first value in an ordered pair is the x-value while the second is the y-values, i.e. (x, y).
Therefore, the domain for the given set of ordered pairs is:
{-1, 0, 5, 10}.
The correct option is A.
