Neptune is 4,498,252,900 kilometers from the sun. which distance is 200,000,000 kilometers closer to the sun?

Is this a polynomial function? i need to know asap

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}

Which graph represents the linear function below? y-3=1/2(x+2)