What was the balls average speed during the time represented in the graph

Choose the point slope form of the equation below that represents the like that passes through the points (-6,4) and (2, 0)

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

What is the domain of the given function? {(3,-2), (6, 1), (-1, 4), (5,9), (-4, 0); o {x | x= -4,-1, 3, 5, 6} o {yl y = -2,0, 1,4,9} o {x|x = -4,-2, -1,0, 1, 3, 4, 5, 6, 9} o y y = 4,-2, -1, 0, 1, 3, 4, 5, 6, 9}