The temperature of a liquid is decreasing at a constant rate. After two minutes of cooling, it was at 178 degrees and after five minutes of cooling it was at 154 degrees. At what temperature did the liquid start cooling? Show how you arrived at your answer.

Given a = {(1, , 5)(6,4)}, b = {(2,0)(4, ,5)(0, 0)) and c = {(1, 1)(0, 2)(0, 3)(0, ,5)}, answer the following multiple choice question: from the list of sets a, b, and c, state the domain of set b. domain of set b: {0, 6,5} domain of set b: {2, 4,-4, 0} set b does not have a domain