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To plot any graph, you need to find out where the curve cuts the x and y-axis, and where it's stationary points are, aswell as what type of stationary point you have. Here are the steps: 1) Let x=0; find whe...

These types of questions want to check that you can understand the main argument of 3 different historical sources. - Firstly, the most important thing to do is to read all of the sources thoroughly and asse...

First, read the extract slowly and thoroughly. Try to get an overall sense of it. What is the tone? You will need to construct an argument about what the extract is trying to do. It is important to be able t...

What is the second line of defence? Before we start let’s re-cap some key terminology: - pathogen : a microorganism causing disease or illness to its host - lymphocyte : a small white blood cell involved in ...

The first step is to view the sum as an addition of a positive and a negative number, rather than a subtraction: 17 + (-24) From there we can work out the binary equivalents of the 2 numbers: b7 b6 b6 b4 b3 ...