Review/revision
Horizontal Stretch
f(ax) is a stretch from the y axis by factor \({1 \over a}\)...
Review/revision
Translations
f(x - a) + b is a translation...
Review/revision
Horizontal Stretch
f(ax) is a stretch from the y axis by factor \({1 \over a}\)...
Review/revision
Absolute functions
Drag the slider to switch between f(x) , |f(x)| and f(|x|) You can enter your own functions For |f(x)|, any part of the function f(x) below the x axis is reflected in the x axis. For f(|x|), any part...
Review/revision
1 over function
The graph of f and \({1 \over f}\) intersect where \(f(x)=\pm 1\) x intercepts of the function f become vertical intercepts of \({1 \over f}\) Local maxima of f become local minima of \({1 \over f}\)...
Review/revision
Translations
f(x - a) + b is a translation...
Assessment
Sample Paper 3 HL Qs
This page contains Paper 3 HL sample questions that I have written - along with worked solutions. The purpose of these sample questions is to provide appropriate questions for your HL students to work...
Blog
Icosahedral viruses - potential extended essay Free
Most of us know a lot more about viruses now than we did a few months ago. I was fascinated to learn that some viruses exhibit very interesting geometric properties. The virus causing the current global...
Blog
Virus tests, probability and false-positives Free
My apologies for another blog post (see 13 May post) which includes the words "virus" and "probability" but undoubtedly some interesting mathematical components are embedded in aspects of the current...
Blog
7350 coin flips on a GDC Free
It’s pretty clear after a look around my site that I have a clear preference for the TI-Nspire CX when it comes to choosing a graphic display calculator (GDC). Some day – who knows when – handheld devices...