What are the domain and range of the function {(3, 1), (5, –1), (9, –1), (2, 7), (–4, 1)}?
a.
domain: {3, 5, 9, 2 }; range: {1, 7}
b.
domain: {1, –1, 7}; range: {3, 5, 9, 2, –4}
c.
domain: {1, 7}; range: {3, 5, 9, 2 }
d.
domain: {3, 5, 9, 2, –4}; range: {1, –1, 7}

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