Which relation is also a function? O [(-1,3), (0, 2), (3, -1), (3, 2)}
O {(2,-4), (2,-2), (2, 1), (2,3)}
O {(0, 3), (1, 2), (1, 4), (2, 1)]}
O{(-4,-3), (0, -3), (1, -3), (4, -3)}

You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

Use the graph of the sine function y=2sinθ shown below

Ill mark the brainliest if you me with the these three questions 7,8,9