Unit 9: Graphs
CIMT Textbook Chapter 13
Interactive tutorials
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
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:
Factorising:
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:
