AQA A Level Maths: Pure复习笔记2.9.2 Stretches
Stretches What are graph transformations? When you alter a function in certain ways, the effects on the graph of the function can be described by geometrical transformations With a stretch a...
AQA A Level Maths: Pure复习笔记2.9.1 Translations
Translations What are graph transformations? When you alter a function in certain ways, the effects on the graph of the function can be described by geometrical transformations With a transl...
AQA A Level Maths: Pure复习笔记2.8.5 Modulus Functions - Solving Equations
Modulus Functions - Solving Equations Modulus graphs and equations Two non-parallel straight-line graphs would intersect once If modulus involved there could be more than one intersection De...
AQA A Level Maths: Pure复习笔记2.8.4 Modulus Functions - Sketching Graphs
Modulus Functions - Sketching Graphs Modulus functions The modulus function makes any ‘input’ positive |x| = x if x ≥ 0 |f(x)| = f(x) if f(x) ≥ 0 |x| = -x if x < 0 |f(x)| = -f(x) ...
AQA A Level Maths: Pure复习笔记2.8.3 Inverse Functions
Inverse Functions What is an inverse function? An inverse function is the opposite to the original function An inverse function is denoted by The inverse of a function only exists if the fun...
AQA A Level Maths: Pure复习笔记2.8.2 Composite Functions
Composite Functions What is a composite function? A composite function is where one function is applied after another function The ‘output’ of one function will be the ‘input’ of the next on...
AQA A Level Maths: Pure复习笔记2.8.1 Language of Functions
Language of Functions Language of functions The language of functions has many keywords associated with it that need to be understood What are mappings? A mapping takes an ‘inp...
AQA A Level Maths: Pure复习笔记2.7.4 Proportional Relationships
Proportional Relationships Proportional relationships Proportional relationships describe a proportional connection between two variables This can happen in two ways Direct proportion one va...
AQA A Level Maths: Pure复习笔记2.7.3 Solving Equations Graphically
Solving Equations Graphically Solving (simultaneous) equations graphically This is a way to solve simultaneous equations (see Simultaneous Equations) Coordinates of the intersections are the...
