IDNLearn.com: Where your questions meet expert answers and community support. Ask your questions and receive comprehensive and trustworthy answers from our experienced community of professionals.

Identify which of the following representations are functions. If not a function state how you would fix it to make it a function.

1. D = (4, -1), (3, -6), (2, -1), (1, 2), (0, 4), (2, 5)

2. The number of calories you have burned since midnight at any time of the day.