Not gonna lie but this is so much better than any other channels I have used to revise. Thank you so much!

@ExamSolutions_Maths

5 жыл бұрын

Thank you for your comment.

@7arun9211

2 жыл бұрын

Exactly

My god, you are amazing ,you explain with fluency and allow me to actually take it step by step. You make everything so simple. Thankyou!👍

@ExamSolutions_Maths

4 жыл бұрын

Thank you. I am pleased to hear it helped.

2x+1=0 leads to 2x= -1 which leads to x= -1/2

Thank you very much sir, you have literally explained it better than my teacher and saved me from my stress

This was so helpful. Thanks a lot. Easy language, clear drawings and easy explanations. I thank you A LOT!

Ive been trying to find a helpful video and this one is just what i need its straightforward and easy to understand. Thank you so much

Thank you so much, this was extremely helpful!

I WISH YOU HAVE CREATED THESE VIDEOS WHEN I WAS IN MY COLLEGE! SO MANY SLEEPLESS NIGHTS I HAD!

This is the best channel for help with math questions. Any difficult math question that I have had, I could find nobody else that could teach as well as you guys. Thank you very, very much. You guys are awesome!

@ExamSolutions_Maths

6 жыл бұрын

It's just one guy. Me. www.examsolutions.net/about-me/

Underated channel. U deserve more subs

@ExamSolutions_Maths

3 жыл бұрын

Thanks please share the channel 🙏

great video.. you explained what I needed to know about common mistakes in plotting these graphs. Many thanks.

Definitely the best explanation I have heard so far

THANK YOU SO MUCH THIS VID WAS REALLY HELPFUL!!!

very useful, very clear; many thanks!

Wow This really helps. Really I mean you are way better than my teacher. Way better. Please make more videos on different topics. I love these. Thank you so much.

awesome work! really nice

this was so helpful thank you so much

this is asmr math i love this channel

Thanks a lot, it helped me understand.

Nice explanation sir. Thank you so much.

You are AMAZING!!!!

thank you so much for this, for some reason I've always struggled with this but thanks to you I find this unbelievably easy :D

@ExamSolutions_Maths

7 жыл бұрын

Cool

well done and i have learnt a lot

thank you very very very much~♡you saved me

Thank you very much the video really helped me in my study for my math test❤❤❤

You are the best online teacher

Great Explanation sir

excellent ! May i ask you what apps did you use to make this video. Looks very neat, cool and simple.

Thanks very much, Ben Sasson

Helped me in physics..Thanks

Great!

Wow. You explained it better than my teacher.

thank you sir!!!!😭😭

you saved my life thanks

@ExamSolutions_Maths

9 жыл бұрын

Lord Voldemort Cool. Another life saved. Thanks for using.

nice explanation

god bless this man

Man you are great

Thank you sir

I didn't understand the turning points. But this video really helped. Thanks.

Thanks

You can also look at the 6 different cases of a parabulla and the x axis. For each case you can tell how the integral function will look. You conclude that if f(x)=ax^3 + .... then if a is positive then f will be either increasing or increasing-decreasing-increasing. If a is negative then f is decreasing or decreasing-increasing-decreasing. If it has two or three zeroes then it is clear how it looks like.

watched this the day before my exam and got a 97%, thank u

@ExamSolutions_Maths

3 жыл бұрын

Well done.

thank you this video was helpful

@ExamSolutions_Maths

4 жыл бұрын

No problem. pleased it helped and thanks for watching.

yo I use your website a lot , I'm currently doing AS Maths - are you going to do d1 section , Im guessing it will be hard to do but would be massively appreciated. Also how do you actually do all of this.

@ExamSolutions_Maths

8 жыл бұрын

+Mike T. DOg I doubt whether I will be doing d1 for a while. How do i do all of this? Put in 10 years of work so far.

@MikeTDOg-wn8vg

8 жыл бұрын

Okay that's cool , i meant what program do you use to do all of these videos

i love u

@ExamSolutions_Maths

5 жыл бұрын

Pleasure

Very helpful. Thank you!

@slowcb7310

6 жыл бұрын

no its not

around 10:25 wouldn’t (2-x) make x -2 not 2 since the negative is on the x not on the 2? edit: i checked on desmos and it turns out that i’m wrong, not sure how specifically though

@ramens

Жыл бұрын

If it was (x-2) then x would be a 2.

Thanks alot

@ExamSolutions_Maths

5 жыл бұрын

Thank you for watching.

This is fantastic help. but one thing I don't understand is how high are the peaks? as i see no units along the y-axis, or is this irrelevant?

@filmbyben2

8 жыл бұрын

+multi colour in the exam they dont care how high the peaks are for graphs in C1, its only in c2 when you learn about maximum points

thx a lot

@ExamSolutions_Maths

6 жыл бұрын

🙂

I get this I just cant draw that well I often make the mistake you mention not because I misunderstand the concept but just because i cannot draw would this be something that can cost marks? any solution if so?

@ExamSolutions_Maths

7 жыл бұрын

You must always show the general shape of the curve, often where it crosses the x and y-axis. If it is not totally smooth don't worry to much.

How can u tell if the graph is negative or positive

At about 05:20 you say that the curve will peak at "round about the mid point of x=-3 and x=1...But not exactly the mid point." Why not the mid point ?

@ExamSolutions_Maths

9 жыл бұрын

Because it is not symmetrical.

Legend

But I have a question,I cant simply understand how to identify the the highes/mid-point.Due to mid-point I cant simply sketch the graph exact but closer to that.

@ExamSolutions_Maths

5 жыл бұрын

The highest point does not occur at the mid-point of the intersections with the x-axis.

1.5x speed makes this so much better

@ExamSolutions_Maths

Жыл бұрын

A fast learner you are

What about the y-coordinates of the TPs?

@ExamSolutions_Maths

4 жыл бұрын

This was not the point in this video. If you did want the turning points then do dy/dx = 0 and solve for x and y.

@simphiweasah8502

4 жыл бұрын

@@ExamSolutions_Maths thank you, sir!

Pardon, i think you have to find the maximum point and minimum point as well......

On the last example, isn't it a minus x^3 graph rather than a positive, and doesn't past through 4 rather than -4

@ExamSolutions_Maths

9 жыл бұрын

The graph is correct. When x=0, y=(-1)(-2)^2 = (-1)(4) = -4

@abdihogsade47

8 жыл бұрын

+ExamSolutions I don't get the x outside the brackets

What about x^3 -12x+1=y?

@WipedNBA

4 жыл бұрын

Factorise it first

I was expecting differentiation to be used. What is this tutorial for? GCSE?

@ExamSolutions_Maths

9 жыл бұрын

James Duffy This was designed for AS students

@jamesduffy09

9 жыл бұрын

I just did the pure mathematics part of my GCSE further maths today. I would have loved it if the questions were basic like this

@jamesduffy09

9 жыл бұрын

I appreciate the reply, though

At 9:09 when you are doing the graph of y=x(4-x)(2+x), I get how you worked out the x coordinatesd at where it crosses the x axis. However, I don't get how you worked out that the y coordinate wherre it crossed the y axis was 0. In the previous one, y=(x-2)(x+3)(x-1), you multiplied the numbers in the three brackets tow ork out the y intercept, which was -2*3*-1=6. In this case of y=x(4-x)(2+x) though, where x is on its own to the left of the two brackets, there is no number there, just x. How do you work out the y coordinate in this case? The second bracket and third bracket numbers multiplied would give 4*2=8, but what do you multiply 8 by to get the y intercept? If you imagine the x on its own to be in a bracket, you just have (x) and no number to multiply by 8 in order to get the y intercept? Essentially, I get that you multiply the numbers in the three brackets to get the y intercept value. When there are only two brackets, and an "x" outside of those two brackets, how do you work out the y intercept? I have multiplied the 4 and 2 in the brackets to get 8, but how do I work out the y intercept when Ionly have two brackets with numbers in? Do you just assume that when there is a solo x and no number outside the brackets, that there is a 0 there, so you multiply the three brackets to get 0*4*2 which gives the y intercept value of 0 that you got? Thanks, I am really confused on this.

@ExamSolutions_Maths

7 жыл бұрын

You let x=0 for the y-intercept.

Cool accent bro

I don't understand why 'x = -1/2' with '2x+1'. Is it because if you divided 1 by 2 you would get a half? (I'm a yr9 student btw)

@daniel30000i

8 жыл бұрын

because it's 2x+1=0 so 2x=-1

Okay, you sir, deserve an award. Where's the donate link?

@ExamSolutions_Maths

8 жыл бұрын

+techforever1970 Thank you if you do. It's on my website www.examsolutions.net/maths-aid.php

Isn't -1 x -4 equaled to 4? I'm confused.

@gameryl3900

2 жыл бұрын

-1 times -4 is 4.

@gameryl3900

2 жыл бұрын

Which question are you asking about?

i did all of it but i got the last one wong

Is it just me.,or he speaks like Zayn Malik.😂 by the way great video

Yo, where's the passion?

@SomEbodyisDERP

5 жыл бұрын

Issokay this is not that exciting anyways

wtf -1 x -2^2 is postive 4 not -4 im so losttttt ???

He sounds like big the cat without psychedelics or a british big the cat

Why do sound like Prince William???😂😂😂

You sound like Richmond from IT crowd

@CAL1MBO

6 жыл бұрын

Not at all!

why's ur voice so slow, jarring

@ExamSolutions_Maths

3 жыл бұрын

I wish I knew myself. Perhaps you would be better off looking at other videos out there that are also free but please thank the guy instead for the time and effort they put in when you find it or not make a comment at all.