For which values of k is the set of order pairs {(2,4),(k, 6),(4,k)} a function? Answer: {k/k is a real number; k≠2 and k≠4} Step-by-step explanation: A relation is a function where the first elements (x-coordinate) are not repeated . However, the second elements (y-coordinates) can be repeated. Given: {(2,4),(k, 6),(4,k)} The first elements are 2, k, and 4. For the set to be considered a function, 2 and 4 can not be repeated. Therefore: k/k is a real number; k≠2 and k≠4