I need help on this fast Which set of ordered pairs represents a function?
O {(5,-2), (0,3), (-4,6), (0,5)}
O {(5,7), (5,6), (3,-1), (7,4)}
O{(-5, -9), (8, –4), (-4,-3), (4, -4)}
O {(–9,6), (–2,8),(-9,-5), (8, –6)}

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.