Apply the Distance and Midpoint Formulas Section 11.5
Objectives: Apply the distance and midpoint formula
Key Vocabulary: Distance formula Midpoint Midpoint formula
The Distance Formula
Example 1: Find the distance between (-1, 3) and (5, 2).
Example 2: The distance between (3, -5) and (7, b) is 5 units. Find the value of b.
#1: Find the distance between the points. (3, 0), (3, 6)
#2: Find the distance between the points. (-2, 1), (2, 5)
#3: Find the distance between the points. (6, -2), (-4, 7)
#4: Find the value of a. The distance between (1, a) and (4, 2) is 3 units.
The Midpoint Formula
Example 3:
Example 4: You and a friend are sightseeing in Washington, D.C. You are at the National Gallery of Art, and your friend is at the Washington Monument, as shown on the map. You want to meet at the landmark that is closes to the midpoint of your locations. At which landmark should you meet?
Homework Assignment Page 747 #6, 8, 10, 14, 16, 18, 22, 24, 28, 30, 32, 34, 40, 42, 44, 48