Factor x2 − 7x + 8. (x + 8)(x − 1) prime (x − 8)(x − 1) (x + 8)(x + 1)

The domain of the following relation: r: {(3, 5), (8, 6), (2, 1), (8, 6)} is (1 point) no domain exists {1, 5, 6} {3, 8, 2, 8} {2, 3, 8}