Inverse function question - GCSE maths higher

This video is all about inverse functions and forms part of the playlist inverse functions g^-1 . I've also added to the playlist on GCSE higher revision.

The question is aimed at around grade 6 GCSE mathematics:

The functions of f and g are such that f(x) = 3(x - 4) and g(x) = (x/5) + 1

Find the value of f(10)

Find g^-1(x)


I hope the video helps and please do leave a comment - thanks!

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The course contains around 3 hours of video, quizzes and a copy of my book 'How to get an A in maths.' All the way through to GCSE and just in time for revision.

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[keziaharrison]

Thank you. I have had so much trouble with inverse fractions but am now understanding them so much better!

[HassanAhmed-wpot]

Can u teach volume and surface area of composite figures especially the figure of. A cylinder with its top base attached to a cone. Plz I need help

[stephenbarker]

hi can you do a vid on binomial expansions please