Year 9 Term 3

Unit 9: Graphs

CIMT Textbook Chapter 13
Interactive tutorials

CIMT Textbook Chapter 17

year9 11

Plot coordinates:

Gradient of a line:

Gradient from 2 points:

Drawing straight line graphs:

y = mx + c song:

Calculating equations of lines:

Equation of a straight line through 2 points:

Introduction to solving inequalities:

Representing inequalities on a graph:

Plotting quadratic graph:

*Solving quadratic inequalities* (Advanced)

*Finding perpendiculars to lines* (Advanced)

Unit 10: Algebra

CIMT Textbook Chapter 11
Interactive tutorials

year9 10

Collecting like terms:

Collecting like terms 2 [error at 3.45 – should be 8x^2]

Expanding 2 single brackets:

Substitute into equations:


Simplify expressions:

Solving equations (x on one side):

Solving equations with x on both sides:

Solving equations with fractions:


Expanding single brackets and simplifying:

Expanding double brackets:

More examples for double bracket expansion:

Factorising double brackets:

Trick for factorising double brackets when x^2 is greater than 1:

Solving quadratics by factorising: