1. the domain set of C = { (2, 5), (2, 6), (2, 7) } {2} 2. the range set of E = { (3, 3), (4, 4), (5, 5), (6, 6) } domain = range = {all real numbers} 3. the range and domain of F = x + y = 10 domain = {all real numbers}: range = {y: y = 3} 4.
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