The combination of. the tornadoes, severe thunderstorm winds and winds behind the cold front left over 775,000 homes and. businesses without power and about $70 million in damages. April 2014 Page 5 of 16 www.mcswa.com. The following is a list of tornadoes experienced by each county in Michigan.
{(-1, 3), (-2, 5), (-3, 3), (-5, -3)}. To show that the four ordered pairs belong together in a set, we list them with commas in between each and brackets around the group. As with other methods of representing relations, we can check the characteristics of a set of ordered pairs to determine if it is a function.he next table does not represent a function. The x column has two values that are 3, and they correspond to two different values for y. Remember, when a single input can produce multiple outputs, the relation is not a function.
Operations on Relations. â¢ Because relations are sets of ordered pairs, we can. combine them using set operations of union, intersec-. tion, and complement. These are called the Boolean. operations on relations. â¢ Example Let A = {a,b,c}; R = {(a,b),(a,c)}, and S = {(c,a)}. Then RâªS = {(a,b),(a,c),(c,a)}; R â©S = â, and. R = (AÃB)\R = {a,a),(b,a),(b,b),(b,c),(c,a),(c,b),(c,c)}. â¢ Example Let A be the set of people.