Composite Functions | Grade 7-9 Maths Series | GCSE Maths Tutor

[@Maryam-lm5po]

This guy will be the reason I pass my maths GCSE, everything he says makes sooo much sense thank you!

[@TheGCSEMathsTutor]

Amazing news! So glad to hear it’s useful 😁🙏🏼

[@barbarians7866]

When the exam starts no one: me: *ayatul-kursi* Bismillah hir rahman ir raheem lol :)

[@potatospud1597]

Good luck

[@xpresslotodo460]

@@barbarians7866 youre not the only one, it gives you more luck lol

[@barbarians7866]

@@xpresslotodo460 Alhamdullilah! May Allah make everything easy for you! I wish you all the best :)

[@em_ignite]

I’m top set maths at my school and you’re the only one who actually explained this to me in a way I can understand. It took many hours of revision until I found you but it was worth it!

[@maddielakeland5314]

the 8 dislikes are from teachers who are mad that they still couldnt get us to understand this after 5 lessons and you did it in 12 minutes

[@TheGCSEMathsTutor]

Haha that makes me feel a lot better about the dislikes! 😂

[@stealt7073]

@@TheGCSEMathsTutor legend

[@cherryslushieonly6382]

This person is the reason I get maths asw

[@Rockerfeller26]

I got a 98% this term and you where a HUGE contribution to that...fan of your work ...it's honestly amazing how so many people (including myself) can benefit from this treasure ...it's an immense thank you from me

[@ashuwab8489]

Congrats on getting 98% That's amazing!

[@mehreen5908]

super late, but that's awesome, congrats!

[@Thatcoolguy56]

That's impressive af dude, keep it up

[@Cosxmix]

I dont understand how your make everything so much easier to comprehend

[@seanobi4189]

Omg thank you so much, every time I do a past paper I just skipped function questions out because they looked so hard, you make it so easy, definitely won't be skipping those questions out again :)

[@djwafflez5133]

Samee

[@seanobi4189]

@@djwafflez5133 lmao this was two years ago and i have a level maths paper 2 next week

[@thegaming12wr35]

​@@seanobi4189 Got my GCSE maths today revising this while on the toilet 😅

[@fatima-de2yv]

@@thegaming12wr35how was your maths gcse😭

[@thegaming12wr35]

@@fatima-de2yv fully sent it with this being my only revision , got out with a 7 and doing a level maths now 🙏🏌️

[@maddiedavila937]

You have been sent by god 🙏🙏🙏 tysm

[@TheGCSEMathsTutor]

Well thank you!!! 😁 my pleasure glad you are finding use in the channel!

[@quinstoni]

I take igcse in new Zealand and my teacher explains things very vaguely so this in depth explanation was amazing

[@TheGCSEMathsTutor]

So glad to hear that the content is working for you! Well done for being proactive and putting the time in to deepen your understanding 😁🙏🏼

[@aaryanramani1699]

Excellent knowledge and explanation again...But I have to say- What an INTRO...LOVE THE MUSIC!!!

[@TheGCSEMathsTutor]

Aaryan Ramani Haha thank you! That intro took me ages to make 😂🙏🏼🙏🏼

[@nawfaljafri]

@@TheGCSEMathsTutor you made it?? i love it, it always lightens up the mood when coming to study math

[@complexnumbers0196]

Outstanding video to increase prior knowledge of functions. Namaste 🙏🏻

[@TheGCSEMathsTutor]

So great to hear! Thank you 😁🙏🏼

[@sagacioussigma527]

namaste

[@abduones]

I'm really happy to joining your channel❤️ when I'm going to graduated from uni as computer science❤️ you're the first one make me graduated ❤️ thank you So much

[@DanHaines-kw3bl]

I like your clarity, IGCSE maths is so much easier because of you!!! 🙂😀😃😁

[@uibikun3567]

It sounds so much easier when you explain it, thank you!

[@IffatAraMousumi]

Lifesaver before the day of the exam!!!

[@mia_28166]

Last day watching this guy he is the reason i will pass maths gcse paper 3 tmmr

[@TheGCSEMathsTutor]

Glad to hear I could help! Good luck in the exam, you’ve got this! 💪🏼

[@mia_28166]

@@TheGCSEMathsTutor Thank you

[@KrishFIFA]

didnt understand functions until today. This guy explains it very well, thank you for doing these vids

[@vaed1651]

you don't understand how helpful these videos are man, thankyou so much and I wish that you get only the best in life

[@SpiccyS]

Currently 1am, have my paper 3 in 7 hours, I need an academic comeback for an 8, this video helped 🙏🏼

[@SpiccyS]

It worked, the 8 came home 🗣️🔥

[@raiix7322]

I’m so glad I came across your account because I was watching mathswatch videos and I didn’t understand it at all because of how complicated they made it. Thank you so much 😭😭😭

[@jiyasaleman676]

I have never known a math teacher like you. You are the last of the stars thanks for being brilliant

[@Sick-Star4life]

I love this guy he is fast and understandable! Keep the good work!!

[@jeevanshergill9352]

Thank you so much, i stumbled on your video whilst doing revision for my Yr11 mocks coming up in 3 weeks and your video is brilliant. It explains things in clear and I will recommend to all my friends. Cheers 👍

[@imenesukinealabouayed9442]

This was so helpful, the way you teach is amazing. Inshaalah next time I come back to these comments I will have all my 9s

[@matthudson9705]

This is the only part of maths I didn’t understand. In my recent mock I got 67/80 (84%) however without functions I got 67/73 (92%). You’ve made it so much easier!

[@user-yf6ns7ji4f]

You are so clever how much do you reckon you revise a day and how long have you revised for Ik it is different for all people but I’m just curious

[@matthudson9705]

@@user-yf6ns7ji4f I didn’t revise at all as maths has always been my strongest subject. However for stuff like sciences I revised two hours per subject per week, from the CGP revision guides. The longer before the exams the better, minimum 7 weeks for top grades, unless you’re willing to work your ass off shortly before the exams.

[@user-yf6ns7ji4f]

@@matthudson9705 you are truly blessed what are your grades looking like for science

[@matthudson9705]

@@user-yf6ns7ji4f Biology - 9, Chemistry - 8, Physics - 7

[@Thalasius]

@@matthudson9705 That's literally what everyone says. Bet u revised at least 3 hours a day.

[@Inkyfnaf._]

I missed our functions lesson and my teacher never went back over it 3 months later I finally know because of you Tysm your a life saver 😭😭

[@TheGCSEMathsTutor]

So glad I could help! 😁😁

[@0x978]

I might be the only person watching this video to help me with my University studies lol... Can be demotivating to see all this stuff taught at GCSE and yet here I am at the end of year 1 Computer Science at Uni learning it for the first time so I dont struggle next year lol but we vibe edit: I must also thank you so much, these videos are so easy to understand.

[@i_love_what_you_hate4637]

hru doing now

[@diyamahmood8658]

@@i_love_what_you_hate4637 they never reply

[@Iuvmeg]

did you do a level maths

[@0x978]

@@i_love_what_you_hate4637 Graduated looking for a job :D

[@0x978]

@@Iuvmeg Nope

[@aminafofana8767]

I love ur voice and it’s so calming and makes everything easy to understand

[@TheGCSEMathsTutor]

So glad to hear that! Thank you for the kind words 😁🙏🏼

[@ytasd4467]

I've learnt some much in one day from your videos, thanks

[@TheGCSEMathsTutor]

Amazing news! So glad to hear it’s helped 😁🙏🏼

[@mrnobody3873]

This guys gonna get everyone this year 9s

[@VTMOB-ac]

Haven't learned this in school yet but im glad I will be able to know how to do it already, thanks for this video 🙏

[@user-kj9xg9rm3l]

Thanks so much! i understood this concept much more clearer

[@oceanofrose]

BROOO ITS LIKE 10 MINS BEFORE MY EXAM AND I FINALLY UNDERSTAND TYSM I OWE U MY LIFE 💓

[@TheGCSEMathsTutor]

Amazing news! Good luck on your exam!! 🤞🏼🤞🏼

[@qalaamasali7888]

Thanks carry on going and finish the whole course👍👍👍

[@TheGCSEMathsTutor]

Qalaa Masali I will do! I’m getting closer by the week, 70% complete!! 😁🙏🏼

[@abigailscreativeworld]

I used to hate functions... now there one of my favourite topics in maths because of your teaching.

[@meerkatking5521]

how will this coronavirus pademic affect students currenly in yr 10 moving into year 11. Will we be behind and if so will they make 2021 gcses more easier

[@Masowe.]

i dont encourage them to relax although everyone knows that it is annoying to read during this pandemic.However, they might use the fact that we/they have social media platforms and ways to get in touch with tutors for any help and make them harder.

[@TheGCSEMathsTutor]

Meerkat King As it stand we need to wait for Ofqual to make a decision, as soon as there is more information I will let you know 😁🙏🏼

[@Akzino-]

Didnt really understand when my teacher explained it but u made it so clear, ty

[@greenpufferfish192]

Ty so much ur the only maths youtuber that makes any sense

[@qushwgs5308]

No joke I spend an hour on text book and useless videos. This video actually made sense 😅 tysm

[@barnabywebster3505]

I never understood functions and now I can do with ease thanks

[@blamethehacker3807]

THANK YOU ACTUALLY HELPED ME OUT IN THE FIRST 2 MINUTES

[@imnotokayipromise5940]

real gcse exam tomorrow, i sincerely hope this helps me 😭😭

[@imnotokayipromise5940]

only 5 minutes in and it already makes so much more sense oh my god thank you so much 🙏🙏

[@erenyeager6668]

good luck !!! you'll do great 🙌

[@imnotokayipromise5940]

@@erenyeager6668 thank you mr yeager your support is greatly appreciated🔥

[@unclecondog9807]

Good luck I’m learning this rn 💀💀

[@erenyeager6668]

@@unclecondog9807 we got 1 hour left lmao

[@TJ-vm1zw]

I got my exam tmr I thought I was finished till I saw this man ffs so many more topics to go through still and it’s 1am 😭 inshallah i pass

[@floppitidy]

bro same im going through sm topics rn

[@floppitidy]

lool omg it was me 😭

[@GCSEALevelMaths2025]

Excellent explanation well done!! Congratulations on 130k

[@dwai3096]

I had the first question on my maths mock yesterday, and I had no clue how to do it; I have never learnt that ever!

[@diyamahmood8658]

how did u do

[@sid4931]

The intro's a vibe.

[@TheGCSEMathsTutor]

Glad you like it! It took me days to make haha! 😁🙏🏽

[@lorebajo4140]

I still don’t understand why teachers can’t explain the way this guy does ,,

[@estheromoyele3321]

Omgggg this is AMAZING THANK YOU-✨✨

[@TheGCSEMathsTutor]

My pleasure! Glad to hear it’s helpful 😁🙏🏼

[@rw-pi1gw]

I struggled so much in school with this confusing method they made us learn but after watching this I quickly understood functions and can finish questions faster than my peers xd

[@TheGCSEMathsTutor]

Amazing news! I’m so glad to hear the channel has helped 😁🙏🏼

[@samanthabeckett1721]

Better than any maths lesson I have

[@hamzahwaheed9528]

I now get composite functions thank you so much

[@TheGCSEMathsTutor]

I’m so glad to hear that! Well done 😁🙏🏼

[@eslamonthevlog]

you are the FRICKING BEST HOW DID YOU MAKE IT SO EASY BRO I THOUGHT I WAS GONNA FAIL MATH FOR SURE

[@TheGCSEMathsTutor]

So glad to hear that thank you! 😁🙏🏼

[@peterbradshaw8018]

Your voice is so soothing.

[@abnation8145]

woah mate

[@peterbradshaw8018]

What the hell are you insinuating take your mind out of the gutter and elevate your thoughts beyond the vulgar.

[@Yaz-tm4uy]

fr

[@boo9264]

watching this before my exam 😭 never got functions so ty

[@JP-mg5dc]

nice video! quick question, if u work out what fg(X) is first lets say and then work out what fg(4) is that fine?

[@TheGCSEMathsTutor]

Absolutely! A more advanced process but a very logical one 😁🙏🏼

[@JP-mg5dc]

@@TheGCSEMathsTutor means a lot god bless u or have a great day

[@marcelinocastrillomolina2513]

Can you make a vid about functions like: g(x) = 12 - x4 when x is or is bigger than -4. What is the biggest value of x that satisfies the equation?

[@TheGCSEMathsTutor]

Marcelino Castrillo Molina This is really just an inequality, so 12-x^4>-4 which rearranges to 16>x^4 and then 2>x or x

[@maharizwan2934]

Amazing video finally understand

[@TheGCSEMathsTutor]

Great news! Thank you 😁🙏🏼

[@LH-sh2tz]

I understood all of the vid Untill 11:20 The explanations was so good tho

[@TheGCSEMathsTutor]

What threw you off at this point? Glad you enjoyed it 😁🙏🏼

[@LH-sh2tz]

@@TheGCSEMathsTutor I think I understand it now so thank you

[@aalimdamani9945]

best help in my life

[@russell4658]

Thanks man seriously.

[@Abi-dr1zm]

my gcse mock are in an hour - thanks for the help :)

[@shamshaadnaheemaislam908]

Thank you so much for your efforts ! You really have saved me !

[@LeeLarner]

The functions f and g are such that f(x) = x2 − 2x g(x) = x + 3 The function h is such that h(x) = fg(x) for x greater than or equal to −2 Express the inverse function h−1(x) in the form h−1(x) = sir would you do this one the same way to the question at the end or differently because it has a inequality symbol how would you deal with the inequality part

[@TheGCSEMathsTutor]

Lee Larner Are you sure it is greater than or equal to -2 and not greater than or equal to -1? In terms of the process it is very similar to the last one here but I little more complex in terms of the inverse function! If you could clarify the inequality aspect I’ll see if I can help 😁🙏🏼

[@LeeLarner]

@@TheGCSEMathsTutor I Copied and pasted the question it is -2

[@TheGCSEMathsTutor]

Lee Larner Do you have the link? I’ve got a solution but I feel like something is missing. When you substitute x+3 into x^2-2x you get h(x)=x^2+4x+3, you can then complete the square to give h(x)=(x+2)^2-1 rearranging for h^-1(x)=-2 +/- root(x+1) and in this way x cannot be less than -1 as rooting a negative would leave it undefined so x must be greater than or equal to -1 🤔

[@LeeLarner]

@@TheGCSEMathsTutor its a mock from a Edexcel IGCSE January 2020 paper is their a secure way i can send it you so it does not get leaked as i could get in trouble for that

[@TheGCSEMathsTutor]

Lee Larner Aaaah no need I know the question now, so my solution is correct, the interpretation of x being greater than or equal to - 2 is indicating the required solution, so for h^-1(x) = - 2 +/- root (x+1) in order for this to be greater than or equal to - 2 it must be the positive version, so the solution is -2+root(x+1) only! 😁🙏🏼🙏🏼

[@fisayoamusan4211]

Thank you so much you just helped me and my friend🙏🏾

[@DSs.movies]

at 7:40 are you required to factorise ?

[@fatimabatool2913]

Umm. Hi I had a question inverse of composite function isn’t in GCSE 2025 syllabus right?

[@callumtodd2669]

Instead of finding what f= when 4 is there Can you just put f into g then find out what it is if 4 is there or is your way the right one?

[@rayhaan7860]

The question in my mocks literally looked like an A level question now it seems like a easy questions .Thanks u GCSE Maths tutor.

[@sylvanwroe1213]

Saved me yet again

[@lucymax2178]

Sorry to say your better than Corbett maths

[@rayyanabubakar9015]

Thank you 😊 it was clear and easy to understand

[@iheartag]

so helpful

[@M0Hamza9]

YOU ARE GOING TO SAVE ME AT MY IGCSE PAPER TOMORROW, THANK YOU AND PLEASE CARRY ON THE GREAT WORK, YOU ARE A G 🫡

[@KK-mk8xb]

very helpful!! thanks

[@TheGCSEMathsTutor]

k sam Great to hear! 😁

[@KK-mk8xb]

@@TheGCSEMathsTutor will you be doing any more exam walkthrough videos?

[@TheGCSEMathsTutor]

k sam I shall be 😁👍🏼

[@CHUNKZSPUNKZ]

8:31 Would you simplify to get 2x + 3?

[@aalimdamani9945]

very well explained

[@amadif1793]

Thank you, this video was very helpful.

[@aimbotff3145]

Thank you very much sir ! It was of great help.👍

[@nyandoroooo]

at 9:55 can someone explain how and where he got 6x

[@genox633]

At 11:23 instead of y can it be any other letter like a b c d because you are finding the same thing 😊

[@schecter5035]

The only other letter I like using is (a) x and y ftw

[@obsolete9734]

on the first couple of questions do you just leave your answer as the numbers or do you have to do something else with it

[@fizzabatool2490]

thanks, these are great!

[@TheGCSEMathsTutor]

fizzabatool Great to hear! 😁🙏🏼

[@Issy_A]

Quick Question: Why do you switch around the x and y @ 11:32 ??

[@TheGCSEMathsTutor]

All explained here: kzbin.info/www/bejne/e5W0ipZ3qNpqraM 😁🙏🏼🙏🏼

[@hypergames4818]

very nice video! thanks!

[@thephiljonesfan5849]

just thank you!

[@somerandomfellow8321]

Hey man, which app do you use for all your videos? I really like how the pen options are at the top

[@burvinmoonesawmy8149]

Thank you really helped !

[@miloclipstone912]

Thanks, useful video.

[@meerkatking5521]

how will this coronavirus pademic affect students currenly in yr 10 moving into year 11. Will we be behind and if so will they make 2021 gcses more easier ..............Also any advice for yr 10s

[@ashlynkhan7638]

Really helpful i'm glad i found your channel :D

[@sam.williams0956]

I’m in year 10 and for practice exam most my year is doing intermediate level papers but I’m doing a higher and my teacher hasn’t taught us half the stuff we need because she thought we would do the intermediate when we aren’t. My practice test is in January wish me luck

[@FireFitt]

thanks

[@TheGCSEMathsTutor]

ATORAT Gaming my pleasure 😁🙏🏼

[@Aisha-gd6dq]

Thank you❤

[@TheGCSEMathsTutor]

You're welcome 😊

[@dien777]

Thank you!

[@cyberboyyt1863]

Thanks keep it up mate!

[@TheGCSEMathsTutor]

Glad it helped! I will do 😁🙏🏼

[@JS-he7eh]

What's the rule you can just switch the x and y at 11:35

[@kadburys4802]

thank youu 🥺

[@TheGCSEMathsTutor]

No problem at all!!

[@Giuliano_Iannelli]

What a video thanks a lot 👍

[@doughy2423]

you will be the reason i get an 8

[@qalaamasali7888]

On the last one isn’t it 3x(2x+3)-1

[@TheGCSEMathsTutor]

Qalaa Masali The function of f is subbed in place of ‘x’ so it won’t be 3’x’(2x+3)-1 as the (2x+3) is the new value of x 😁🙏🏼

[@USE_CODE_HS7]

Wowwwwwww intro is so cool

[@TheGCSEMathsTutor]

Thank you 😊