1920 H1X §4.0 and §4.1

• Wiskunde
• Middelbare school
• havo
• Leerjaar 1

Where have you seen graphs (grafieken) this month?

New schedule

Tuesday 24/3/2020        2-test Ch4+Ch7

Tuesday 2/6/2020          2-test Ch10 + Ch12

In testweek                                   retake test block 1 or block 2 

(16/6/2020 - 19/6/2020)         or Ch4/7 or Ch10/12

Graphs

A graph is a visual way to display information.

These are some examples of graphs:

Coordinate system

A graph is drawn in a 

coordinate system.

A coordinate system has 

a horizontal axis and 

a vertical axis.

One pupil made a graph about 

the number of exercises she 

made during class.

What can your read off from the 

vertical axis?

What can your read off from
the vertical axis?

1. number of homework exercises completed
2. time in minutes
3. I don't know

One pupil made a graph about 

the number of exercises she 

made during class.

How many exercises had she

made after 70 minutes?

How many exercises had she
made after 70 minutes?

Coordinates

Each point on a graph can be described with coordinates 

The point that shows that after 70 minutes the pupil has made 6 exercises can be written as (70, 6).

The first number between the brackets gives the value on the horizontal axis, the second number gives the value on the vertical axis.

What are the coordinates

of point A?

What are the coordinates
of point A?

1. (4,3)
2. (3,4)
3. (40,3)
4. (3,40)

What are the coordinates

of point B?

What are the coordinates
of point B?

Homework Tuesday

In you NOTEBOOK: 

- make from Chapter 4: R1, R4, R5, 1, 2, 3, 4, 5, 6 on pages 92-96

- correct your answers with the solutionsbook 1A, use a different colour.