Lesson Summary for 11th February (Tuesday)

Today we started of with a G+ discussion (LINK HERE) of the differences between a
1. CIRCLE
2. ELLIPSE
3. PARABOLA
4. HYPERBOLA 

Where Xintong's explanation was accurate and recommended by Mr Johari.

Conic Sections

A parabola has a line of symmetry, while a Hyperbola has 2 lines of symmetry, the transverse and longitudinal (Vertical and Horizontal)

Equations of Circles

Discriminant

D<0 
Imaginery Roots

D>0
Real and Distinct Roots

D=0
Real and Equal Roots










Methods to finding the centre of the circle and the Radius

Method 1 (Completing the Square)

Method 2 (Comparing Coefficients)

General Form of the equation of a circle

Assignment Questions in (Further Coordinate Geometry: Equations of Circles)

Question 5 (Tier B)

Apparently it can intersect with each other 

Question 8 (Tier C)

Closing Note

Homework: Use GeoGebra or any graphing application to test out assumptions

Quote:
"Your level test is going to hit you like a Meteor" - Mr Johari 2014

Done By Ryan Tan S4-09