The Distance and Midpoint Formulas:
1. Find the midpoint of the line segment joining \(\displaystyle{P =
(-3,6)}\) and \(\displaystyle{Q = (1,4)}\). Also find the distance
between them. solution
2. Find the distance between the points \(\displaystyle{P =
(-4,-4)}\) and \(\displaystyle{Q = (1,7)}\). What are the
coordinates of the midpoint of the line segment \(PQ\).
solution
3. Find the distance between the points \(\displaystyle{P =
(1,-1)}\) and \(\displaystyle{Q = (-\sqrt 3, -\sqrt 3)}\).
solution
4. The government of the United States spent $350 billion on
national defense in the year 2000 and $740 billion in the year 2008.
Estimate the amount spent on defense in the year 2004.
solution