Introduction to Coordinate Geometry
Success Criteria
Success Criteria
At the end of this chapter, students are able to:
At the end of this chapter, students are able to:
- Find the gradient of a straight line.
- Find the equation of a straight line.
- Draw a straight line graph.
Where on Earth are you?
Where on Earth are you?
If I were to check on Google Maps, I'm located in Fuhua Secondary School located at 5 Jurong West Street 41 in Singapore. But if I wanted to be more precise about my location, Google Maps pinpoints my location with 2 numbers: 1.347720N, 103.726227E.
If I were to check on Google Maps, I'm located in Fuhua Secondary School located at 5 Jurong West Street 41 in Singapore. But if I wanted to be more precise about my location, Google Maps pinpoints my location with 2 numbers: 1.347720N, 103.726227E.
This is my longitude and latitude according to the Geographical Coordinate System.
This is my longitude and latitude according to the Geographical Coordinate System.
Latitude
Latitude
Latitude tells you how far north or south I am compared to the Equator (See Red Line above).
Latitude tells you how far north or south I am compared to the Equator (See Red Line above).
Longitude
Longitude
While the Longitude tells you how far east or west I am compared to the Prime Meridian, a line drawn through the Royal Observatory in Greenwich, London.
While the Longitude tells you how far east or west I am compared to the Prime Meridian, a line drawn through the Royal Observatory in Greenwich, London.
Cartesian Coordinate System
Cartesian Coordinate System
In this chapter, you will introduced to the Cartesian Coordinate which is similar to the latitude and longitude system.
In this chapter, you will introduced to the Cartesian Coordinate which is similar to the latitude and longitude system.
Try it!
Try it!
Drag around Point A in the applet on the right and see what happens to the 2 numbers that are used to describe its location.
Drag around Point A in the applet on the right and see what happens to the 2 numbers that are used to describe its location.
Mathematician Profile: René Descartes
Mathematician Profile: René Descartes
The Cartesian Coordinate system is named after the French Philosopher & Mathematician, René Descartes (1596 - 1650). Descartes is often known as the Father of modern philosophy and a pioneer of the 17th Century Scientific Revolution that led to the Age of Reason (Enlightenment).
The Cartesian Coordinate system is named after the French Philosopher & Mathematician, René Descartes (1596 - 1650). Descartes is often known as the Father of modern philosophy and a pioneer of the 17th Century Scientific Revolution that led to the Age of Reason (Enlightenment).
Coordinate Geometry in particular was an important connection in Mathematics that linked Algebra and Geometry and led to many future breakthroughs. In Philosophy, he was famous for coining the phrase 'Cogito Ergo Sum'.
Coordinate Geometry in particular was an important connection in Mathematics that linked Algebra and Geometry and led to many future breakthroughs. In Philosophy, he was famous for coining the phrase 'Cogito Ergo Sum'.
I think therefore I am.
I think therefore I am.
- René Descartes