2.2 Coordinate geometry (continued)

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 4

Good morning!

Schedule: 

• Learning goals
• Last lesson revision 
• Gradient/slope
• Parallel lines and perpendicular lines

Learning goals 

At the end of this lesson I can:

• Find the distance between two points
• Find the midpoint between two points 
• Find the gradient/slope of a straight line 
• Find the gradient/slope of perpendicular and parallel lines

1. .
2. .
3. .
4. .

1. √​52​​​
2. 10
3. 52
4. −​4​​6​​

What are the coordinates of the midpoint between A (3, 5) and B (-1, 8)

1. M (2, 13)
2. M (1, 6.5)
3. M (2,-3)
4. M (4, 3.5)

Gradient/Slope of a line

General formula: Gradient/slope

Gradient/slope revision: 

https://www.geogebra.org/m/trxzesgc

Parallel lines and perpendicular lines: 

https://www.geogebra.org/m/CgUyQdJY

m​1​​=−​m​2​​​​1​​

Fill in the table

Fill in the table

Homework

HOMEWORK:

P. 108: Practice 1 - 1, 2, 4, 5 

P. 109-110: Practice 2 - 1, 2, 3, 4, 5

P. 114: Practice 3 - 1, 2, 3, 4, 5, 6, 7 

Due Monday 14-11!