1. Grade 10 Using coordinate Geometry

2. Exercise1 a. Find the distance between A and B.

3. Exercise1 b. Find the midpoint of AB.

4. Exercise1 a. Find the gradient of the interval joining A and B.

5. Distance AB Midpoint of A and B Gradient of the line AB

6. Exercise2 a. What is the equation of AB ? OC is perpendicular to AB The y-intercept of AB is: The Gradient of AB is: So, the equation of AB is: y =

7. Exercise2 a. What is the gradient of OC ? OC is perpendicular to AB The equation of OC is: y = b. What is the equation of OC ?

8. Exercise3 a. Find the coordinates of E, the midpoint of AB.

9. Exercise3 b. Find the length of OE.

10. Exercise3 c. Find the length of EA.

11. Exercise3 d. What can you say about the distance of E from O, A and B ?

12. End