Which relation is a function? {(5, 0), (0, 1), (5, 2), (4,4)} {(0, 1), (−4, 1), (4, 2), (−4,−1)} {(1, 2), (2,4), (−1, 2), (0,3)} {(3, 2), (2,1), (−1, 2), (3,3)}

The total number of dental clinics total for the last 12 months was recorded

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?