Keshia J.
Algebra II                                                                                                               
3-4-03

SECTION 7-1

THE DISTANCE AND MIDPOINT FORMULAS

Finding the distance between these points for

(4,4) and (2,6).

1. When finding the distance, you want to represent that as d.

2. Put the (x_1,y₁) and (x₂,y₂) into this equation all under a square root.

3. d= (2 - 4)² + (6 - 4)^2, all under a square root.

4. Work the problem inside the square root.

d= Square root of (-2)² + (2)².

5. Work that problem inside the square root.

d= Square root of 4 + 4.

6. Add what is under the square root,

d= square root of 8.

7. Solve the square root of 8 to find the distance.

d= 4 square root of 2

The distance for (4,4) and (2,6) is 4 square root of 2 or 5.6 units.

Math Site: www.math.com

 

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