Acellus Help before i faill

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

Which table represents a linear function? i'll give brainliest to first answer ^'^