One line has four collinear points in order from left to right A, B, C, D. If AB = 10’, CD was twice as long as AB, and AC = 25’, how long is AD?

What is the distance between (1, 4) and (5, 1)?

What is the distance of the line drawn between points (–1,–2) and (–9,4)?

What is the distance between the points and ?

Steven draws a line that is 13 units long. If is one endpoint of the line, which of the following might be the other endpoint?

What is the distance between ?

What is the distance between the point and the origin?

Bill gets in his car and drives north for 30 miles at 40 mph. He then turns west and drives 40 mph for 40 minutes. Finally, he goes directly northeast 40 miles in 25 minutes.

Using the total distance traveled as a straight line ("as the crow flies") and the time spent traveling, which of the following is closest to Bill's average speed?

What is the distance between and ?

Give the length, in terms of , of a segment on the coordinate plane whose endpoints are and .