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While at school,John had a test to take.He had trouble on th e following problem.He had to determine the domain and range of the relation. (-7,1),(3,3),(8,5),(8,6)
A).D=(-7,3,8) R=(1,3,5,6)
B).D=(8,3,4) R=(5,6,7)
C).D=(-4,3,1,9) R=(6,7,8,9)
D).D=(8,3,9) R=(1,4,5,6)