Determine the domain and range of the relation.{(1, -1), (7, -2), (8, -4), (3, -1)}
A. Domain: {1, 7, 8, -3}; range: {-1, -2, -4}
B. Domain: {1, 7, 8, 3}; range: {-1, -2, -4}
C. Domain: {-1, -2, -4}; range: {1, 7, 8, 3}
D. Domain: {1, 7, 8, 3}; range: {-1, -2, -4, 6}
Answer: B
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