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In order to fully understand how differentiation works, it is useful to be able to derive it. To do this, we must first consider the general curve y = f(x), we'll make this curve more specific later on. F...

This question is more easily answered with the help of multiple diagrams, but:1) Draw a rectangle, and draw a line between the top left corner and the bottom right corner. This line divides the rectangle ...

When we factorise we basically want to put an equation into brackets.Firstly we need to see what can be taken out of both parts of the equation.Both 12 and 18 divide by 6. 12/6= 2 and 18/6 = 3So we can ta...

How to FACTORISE an equation:
To avoid confusion; x = xx = multiplication​Take the example; 3x +18
In order to factorise we need to find a common factor for both '3x' and '18' and this number wi...

Suppose y is a function of x: y = f(x) At the maximum/minimum of the curve y, the first derivative of the function (with respect to x) is equal to zero:dy/dx = 0To check ...