Edexcel IGCSE Maths 复习笔记 3.4.2 Drawing Graphs -Using a Table How do we draw a graph using a table of values? Use your calculator THINK what the graph might look like – see the previous notes on...
Edexcel IGCSE Maths 复习笔记 3.4.1 Drawing Graphs - Shapes Why do we need to know what graphs look like? Graphs are used in various aspects of mathematics – but in the real world they can take on s...
Edexcel IGCSE Maths 复习笔记 3.3.2 Speed-Time Graphs What is a speed-time graph? Speed-time graphs show speed at different times Speed is on the vertical axis, and time is on the horizontal axis. &...
What is a distance-time graph? Distance-time graphs show distance from a fixed point at different times Distance is on the vertical axis, and time is on the horizontal axis. The gradient of ...
英国有一所大学，在本地人眼里甚至可以和牛津、剑桥相提并论，统称为“doxbridge” ——它就是杜伦大学。 杜伦大学是英格兰地区最古老的大学，也是少有的学院制学校，处处流露着贵族气质。很多英国本地的知识分子喜欢...
The Alveolar Epithelium The exchange of oxygen and carbon dioxide occurs between the alveoli and the capillaries in the lungs Oxygen and carbon dioxide are exchanged in a process of simple d...
Edexcel IGCSE Maths 复习笔记 3.2.4 Functions - Domain, Range & Exclusions What are functions? Functions are a formal way of writing mathematical expressions eg. f(x) = 3x + 2 would be a linear ...
Apparatus & Techniques: Three-way Taps Three-way taps can be used in conjunction with potometers and respirometers They allow for repeat readings to be taken easily, eliminating the need...
Edexcel IGCSE Maths 复习笔记 3.2.3 Inverse Functions What is an inverse function? An inverse function does the exact opposite of the function it came from Eg. if the function “doubles the number an...
Edexcel IGCSE Maths 复习笔记 3.2.2 Compound Functions What is a compound function? A compound function is one function applied to the output of another function What do compound functions look like...
Edexcel IGCSE Maths 复习笔记 3.2.1 Functions - Basics What is a function? A function is simply a mathematical “machine” that takes one set of numbers and changes them into another set of numbers ac...
Edexcel IGCSE Maths 复习笔记 3.1.3 Arithmetic Sequences - Sum of n terms What is an arithmetic sequence or arithmetic series? Ensure you are familiar with Sequences – Basics and Linear  ...
