Can someone me with this? i couldn't understand the rest

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?

Let w=23 . what is the value of w + 45 ?

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.