9.3 D2 DISTANCE FORMULA

Lesson 9.3 D2: Distance Formula

Learning Goal:

I can find distance of between two points by using the Distance Formula.

Multiple Choice

A soccer field is a rectangle 100 meters wide and 130 meters long. The coach asks players to run from one corner to the other corner diagonally across. What is that distance?

• $$\pm164\$$

• $$163\$$

• $$-163$$

​Example 1: Find the distance between two points

​Example 1b: Find the distance between two points

​Example 2: Find the distance between two points

​Example 3: Application

Multiple Choice

Find the distance, then round it to the nearest tenth.

$$\left(-10,-7\right),\ \left(-8,\ 1\right)$$

• $$8.2$$

• 8.3

• 8.4

• 8.5

Multiple Choice

The Riley and Brown families decided to go to a concert together. The Riley's live 6 miles west and 3 miles north of the concert. The Brown's live 2 mi east and 4 mi south. How far apart do they live?

• $$8.2$$

• 10.6

• 11

• 12

Multiple Choice

EXIT TICKET:

Find the distance between each pair of points. Round your answer to the nearest tenth, if necessary.

• $$8.2$$

• 10.6

• 9.2

• 12