Covers all aspects of the GCSE 2019+ syllabus. Also covers y = f(ax) which is still in the IGCSE syllabus.





D Person
22nd Oct 2021 Flag Comment




E Muhammad
16th Aug 2020 Flag Comment
It is helping me a lot but, it doesn't have answers to the questions

Mr T O'Reilly
31st May 2019 Flag Comment
Dear Dr. Frost, On Slide 21 of your TransformationOfGraphs PowerPoint, it refers to a file called GCSERevision-TrigGraphs but I cannot seem to find it in this folder. Where could I find this file? Thanks



3rd May 2018 Flag Comment
Will go with Octavio Dominguez. The error does not seem to have been corrected yet.

Octavio Dominguez
5th Dec 2017 Flag Comment
Hi there, I've discovered your website recently and first of all I wanted to say massive THANK YOU. You are such an inspiration. Just a quick one on the Transformations of graphs. Slide 9 of the power point. f(x/4). First point (4,3) should be (16, 3), instead of (12,3). I hope that helps. Thanks again!
S Zimmer
24th Oct 2022 Flag Comment
Slide 24 - Question 7 - Shouldn't answer be that the transformation is (0, -4)