In Exercises 29–32 find  →PQ.29. P = (3, 6), Q = (−3, −2)30. P = (5, −3), Q = (3, −6)31. P = (1, −2, 5), Q = (1, −7, −2)32. P = (−1, 5, 4), Q = (−1, 6, 4)

In simple mathematics terms, a domain is defined as the space on which all the possible inputs for the function will lie. It can also be expressed as a set of departures for the required function.