Chapter 15Length and mid point of line .pptx

Find Length and mid point of line

1. Chapter 15.5 Mid point and Length of a line segment

2. Starter On the sheet in front of you, find the number that is halfway between the numbers givem . EXTENSION: 0 and 100 6) -34 and -18 1 and 3 7) 1.5 and 4.5 - ½ and 4 ½ 8) 1.7 and 2.9 0.3 and 0.7 **9) -15.5 and 13.7 -15 and -25 10) Create your own tricky pair !

3. Objectives Find Mid Point of a line. Calculate length of a line

4. Objective 1 Mid point of a line segment Mid Point ( x,y )   (x1,y1) (x2,y2) ( x,y )

5. -5 -4 -3 -2 -1 1 2 3 4 5 -6 -7 6 7 -3 -2 -1 1 2 3 4 5 y -5 -4   (1, 3) (5, 3) (3, 3) (-5, 2) (-5, -4) (-5, -1)

6. -5 -4 -3 -2 -1 1 2 3 4 5 -6 -7 6 7 -3 -2 -1 1 2 3 4 5 y -5 -4   (1, 1) (5, 5) (3, 3) (0, -2) (-6, -3) (3, -2.5)

7. Activity1 Copy and complete the table below Starting Point Midpoint End point (2, 6) (4, 10) (3, 7) (7, 1) (-2, -10) (-8, 0) (1, 5) (3, 9) (0, 0) (9, 5) (3, 8) (5, 4) (-5, -5) (5, 13) (-9, -5)

8. Objective 2 Length of a line segment (x1,y1) (x2,y2) Length =  

9. Example: What is the length of the line between the points (1, 6) and (5, 9)?

10. Example: What is the length of the line between the points (2, 2) and (6, 5)?

11. Activity 2: Find the length of line segments and Match with answer 1. (2,2) and (6,5) (A) 17 2. (-3,2) and (9,7) (B) 13 3. (1,5) and (7,-3) 5 4. (-6,-4) and (9,4) (D) 10

12. Sunday, 06 November 2022 Perpendicular Lines. End of Lesson Reflection: . How do you feel about finding the equations of perpendicular lines now?

13. Sunday, 06 November 2022 Plenary: Perpendicular Lines. Exit Ticket: What is the relationship shared by parallel lines? What is the relationship between two perpendicular lines?

14. H.W H.W. Q .3 and Q.5 - 2 sub questions from each.