Rates of Change
Sometimes we want to know how things change over time or how another quantity is changing while another is changing, for example if the radius is changing over time what is the rate of...
Tagged: Alevel
Sketching Graphs
In this topic we shall be exploring how to draw graphs. But before we do that let’s look at the different types of graphs that you can sketch. You must know these graphs by...
Geometric progression/sequences
A geometric series or progression is a series where each term is found by multiplying the previous term before it by a constant number. This constant number is called the common ratio (r). Here...