x has to be 2, 4 or 5
first b or c
then b or c again
then b
because (-2,5) is not allowed
Cynthia used some of the ordered pairs from the set below to make a new set.
{(4, –3), (–2, 5), (5, 4), (7, 2), (2, –7)}
She wrote the domain of this set as {2, 4, 5}. Which ordered pairs from the original set did Cynthia use to make her new set?
a)(–2, 5), (7, 2), (5, 4)
b)(5, 4), (2, –7), (4, –3)
c)(2, –7), (4, –3), (–2, 5), (5, 4)
d)(4, –3), (–2, 5), (5, 4), (7, 2)
1 answer