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You will be presented with two equations, both with two unknown values. For example:

8x-2y=19

and

3x=5+y

To begin, we are going to move both unknown terms in ...

The y=mx+c equation is for a straight line (also known as 'linear') graph.

The 'y' is representative of the y-value, 'm' represents the gradient (how s...

The first step is to make sure that the coefficient of x^2 is 1 by dividing all terms by a (where a equals the coefficient of x^2). Then we must write the quadratic e...

The reason why we factorise quadratic equation is because it is a neater and simpler way of writing the expression. 

Example 1

If we wanted to factorise x^2 + 10 + 21 we must look at f...