Want to download the Quadratic Equations revision notes in PDF format? What is a Quadratic Equation? [mathjax] A quadratic equation is an equation whose power is in the second degree. In an equation, at least one of the variables is squared. In finding the missing value, it can be solved by factoring, completing the square …

## Proportions

Want to download the Proportions revision notes in PDF format? [mathjax] Proportion is represented by two equal ratios. There is direct and indirect proportion. With direct proportion, the two variables change at the same rate. Direct Proportion With direct proportion, the two variable change at the same time. In direct proportion, as the first variable …

## Matrices

Want to download the Matrices revision notes in PDF format? [mathjax] What is a Matrix & what are Matrices? A matrix is an arrangement of numbers to organise data and solve variables. It’s a way to represent information using a table of numbers. Matrices organise numbers inside a big bracket. The order of the matrix …