Thanks for your brilliant work! Here is the timeline for different graphs in the video: Linear graphs, 0:39 Polynomial x^2, x^3, x^4 graphs, 1:48 Factorized form of quadratic and cubic, 2:34 Factorized form with repeated factors, 3:46 Reciprocal graphs, 5:36 Square-root graph, 6:27 Exponential graphs, 7:11 Logarithmic graphs, 8:39 Trigonometric graphs, 9:56 Inverse Trig. graphs, 12:37 Modulus graph, 15:28 Circles, 16:44 Parametric curve, 18:53
I don't see why not - you're effectively just performing the replacement method for graph transformations. So if a curve was defined by x = e^t y = t^2 and you wanted to stretch it parallel to the x-axis, factor 1/2, then replace the x with 2x and you get: 2x = e^t y = t^2 or: x = (1/2)e^t y = t^2 Which book are you using? And have there been other things in the book that make you feel it's not examinable?
In what cause do u plot min and max points as I'm doing differentiation so when sketching do I have to work out min max then factories to get roots as well as intersection points with x and y axes please help not sure what to do if asked to sketch Please help
I would only aim to find the coordinates of stationary points and add them to my sketch IF the question asked me to do so. If I was asked to sketch y = (x+1)(x-3)(x-4), for example, then I wouldn't bother - the question would have to have many more marks attached to account for it.
For the cubic you say as it is positive it starts from the bottom left. I always just start from the top right, is it always the same or only in special cases
Well I guess you're just drawing it backwards, so +x^3 'starts' in the top right, and -x^3 'starts' in the bottom right for the way you're looking at it.
![A-Level Maths: B7-22 [Graphs: Examples of Sketching Translated Reciprocal Graphs]](http://i.ytimg.com/vi/AkN8EyptZ3A/mqdefault.jpg)
![A-Level Maths: B7-22 [Graphs: Examples of Sketching Translated Reciprocal Graphs]](/img/tr.png)
Thanks for your brilliant work! Here is the timeline for different graphs in the video:
Linear graphs, 0:39
Polynomial x^2, x^3, x^4 graphs, 1:48
Factorized form of quadratic and cubic, 2:34
Factorized form with repeated factors, 3:46
Reciprocal graphs, 5:36
Square-root graph, 6:27
Exponential graphs, 7:11
Logarithmic graphs, 8:39
Trigonometric graphs, 9:56
Inverse Trig. graphs, 12:37
Modulus graph, 15:28
Circles, 16:44
Parametric curve, 18:53
Fantastic! I've added this to the description, many thanks!
@@TLMaths Welcome! Thanks for your hard work in making videos also!
So clear, so concise, can't ask for more, edexcel exam on Wednesday.
3 years later but how did it go!
I’ve been struggling in my a-level class for a month now but this one video has helped clear sooooo much up. Thank you sooo much :)
Makes learning the graphs and how to draw them quicker and a lot easier. Well explained. Easy to understand.
fantastic video. Good summary of all the graphs that need to be drawn which I'm sure many students underestimate in importance.
great vid, fast and straight to the point ... great for a quick recap
cannot thank you enough for this!!!! amazing
thanks! exam today!
your a good teacher thanks
Thank you very much for this brilliant tutorial. A + for you Sir.
You're very welcome!
great video! wish you were my teacher :(
Very helpful, cheers
Great recap. Thankyou 😊
How did u do in your a levels
thanks very much mate
Hi was wondering if stretching parametric curves is required for Edexcel new spec ? They are included in the book.
I don't see why not - you're effectively just performing the replacement method for graph transformations. So if a curve was defined by
x = e^t
y = t^2
and you wanted to stretch it parallel to the x-axis, factor 1/2, then replace the x with 2x and you get:
2x = e^t
y = t^2
or:
x = (1/2)e^t
y = t^2
Which book are you using? And have there been other things in the book that make you feel it's not examinable?
In what cause do u plot min and max points as I'm doing differentiation so when sketching do I have to work out min max then factories to get roots as well as intersection points with x and y axes please help not sure what to do if asked to sketch
Please help
I would only aim to find the coordinates of stationary points and add them to my sketch IF the question asked me to do so. If I was asked to sketch y = (x+1)(x-3)(x-4), for example, then I wouldn't bother - the question would have to have many more marks attached to account for it.
Do you need to know all of them for AS, if not please could you tell me which ones I should know?
Thanks
Not the ones between 11:20 and 16:43, and nothing after18:53
thanks
Hi sir is this still applicable to the new 2022?
Thank yooouuuu
hello sir can you go over stats and mechanics 2018 paper for edexcel please ??
Not sure if I'll have time before the exams hit
For the cubic you say as it is positive it starts from the bottom left. I always just start from the top right, is it always the same or only in special cases
Well I guess you're just drawing it backwards, so +x^3 'starts' in the top right, and -x^3 'starts' in the bottom right for the way you're looking at it.
For the quartic @5:27 how do you know which side of the y-axis the hump is on.
The curve in this case is symmetric
but my CG50 skeches every single graphs
Hari bh damn cheats
buys *graphical calc CG-50* 😎😎😎
Up to you
@@TLMaths I'd recommend it as a useful checking tool for sure