Friday 22 October 2010

Core1 Straight lines 22/10/10

  • Length of line segment
  • Gradient of line from two points
  • Equation of line from gradient and one point
  • using y=mx + c
  • using y-y1=m(x-x1)

http://www.scribd.com/doc/39892849/Core1-Straight-Lines-221010

Friday 15 October 2010

Core1 Part of June 2009 C1 paper 15/10/10

  • Edexcel Core 1 June 2009 paper
  • Questions 1,2,4,6,10
  • Surds
  • Indices
  • Inequalities (linear and quadratic)
  • Using the discriminant
  • Factorising
  • Sketching curves
  • Transforming graphs

http://www.scribd.com/doc/39399092/Core1-Part-of-June-2009-C1-Paper-151010

Thursday 14 October 2010

Core1 Transforming graphs 14/10/10

  • Plotting various quadratic curves
  • Defining transformations applied to graphs
  • f(x+a), f(x-a), f(x)+a, f(x)-a, af(x), f(ax), -f(x), f(-x), 1/a f(x), f(1/a x)
  • Using completing the square and transformation to find minimum points of quadratic curves and to aid sketching of such curves

http://www.scribd.com/doc/39317825/Core1-Transforming-Graphs-141010

Friday 8 October 2010

Core1 Simultaneous equations 08/10/10

  • Solving linear simultatneous equations - including link to graphical representation
  • Solving linear/quadratic simultaneous equations

http://www.scribd.com/doc/38957712/Core1-Simultaneous-Equations-081010

Thursday 7 October 2010

Core1 Inequalities 07/10/10

  • Safe and unsafe operations with inequalities
  • Solving linear inequalities
  • Solving quadratic inequalities
  • Solving combinations of inequalities

http://www.scribd.com/doc/38878370/Core1-Inequalities-071010