## Algebra

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Quadratic Equations

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 and using the quadratic formula.

Proportion

Proportion is represented by two equal ratios. There is direct and indirect proportion. With direct proportion, the two variables change at the same rate.

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.

Gradient and Graphs

The graph helps to properly analyze and give a correct interpretation of given information. It is therefore important to learn graphing fundamentals.

Factorising

Removing the brackets is known as distributive law. To remove the brackets, multiply each term outside the bracket.

What Is A Fraction?

Many equations describe a real-life relationship between two quantities, also known as function. The function is said to be the central idea in the study of mathematics.

Indices

An index is a power of numbers that indicate how many times it has been multiplied by itself. Here are examples indices: 2^9,x^3,x^1/2 and others.

Algebraic Expression

In Algebra, we commonly see x, y and others. Why do we use letters? How can we solve it? An algebraic expression is a combination of integer constants, variables, exponents and algebraic operations such as addition, subtraction, multiplication and division.

Simultaneous Equations

The simultaneous equation is an equation with two or more unknown value which the value of the unknown is same to the other equation.

Solving Equations – Trial, Improvement & Iteration

There are many ways to find the value of a variable. However, let’s study solving for the unknown using trial, improvement, and iteration.