AQA MPC3 31/05/12 revision thread AQA

Got an E in january Have a total of 332 from C1, C2, M1, D1 so need 148 for an A over C3 and C4

I agree that the range thing is a pain, I've never completely got that

A nice analogy:

Imagine that your equation is a rifle. The DOMAIN is the bullet (or what you put IN), and the RANGE is how far it will go (or the answers you will get out). Hope this helps.


This was posted from The Student Room's iPhone/iPad App

Me too. i need 148 put of C3 and C4 for an A overall. Im sitting both for the first time.
How are you doing on past papers?
Also how confident/were you doing in practice papers before you got got the E? were you simply not prepared or just had a bad day on the exam?

Just been going through a revision book and found something about standard integrals. They're in a C3 AQA textbook, but it's the first time I've seen them and I've never seen them in a past paper. We don't get tested on these do we?

Just been going through a revision book and found something about standard integrals. They're in a C3 AQA textbook, but it's the first time I've seen them and I've never seen them in a past paper. We don't get tested on these do we?

Just been going through a revision book and found something about standard integrals. They're in a C3 AQA textbook, but it's the first time I've seen them and I've never seen them in a past paper. We don't get tested on these do we?

I need help on order of transformations - can someone tell me what's is the order? And an easy way to remember them. I also struggle to draw the inverse graph - any shortcut or trick to do it

Order of transformations: I just get the new equation and work backwards until I can get the original one (does that make any sense to you? lol)

I do 1 of 2 things for drawing the inverse function graph, depending on how complex the function is.

a) if it is relativly simple I will simply draw y=x and reflect it.
b) if it is more complex I will work out co-ordinates

There are slightly easier ways to do it - I did this in January but I've forgotten my methods

I think for inverse: reflect in y = x, and then rotate the page/graph 90 degrees.

For transformations I believe it's:
X - 1. Reflection 2. Stretch 3. Translation
Y - 1. Translation 2. Stretch 3. Reflection

Just need someone to confirm it.

ok,thank you so much
How's your revise going?_? Are you ready for the exam?

Does anyone have the Core 3 Jan 12 Paper and mark scheme?

It would be greatly appreciated.

Revision is going great. I should stop making silly mistakes on the papers, though. I'm getting As and Bs on every Solomon paper that I do so I hope that I will be prepared for anything which the examiner throws at me!

And for the range, think about Ln(x) or Log(x). They have the range greater than zero because of the graph.

http://upload.wikimedia.org/wikipedia/commons/thumb/e/ea/Log.svg/300px-Log.svg.png

You see? It gets closer and closer to zero but never reaches it both on the x and y axis. Therefore the range is greater than zero.

And the quadratic x^2 can only output positive values and zero. You can't have a square root of a negative number in the real number system. The shape of the graph shows you that the minimum it can output is zero.

http://jwilson.coe.uga.edu/emt668/EMAT6680.Folders/Barron/unit/Lesson%206/image24.gif

For quadratics, in order to find the range you have to do the C1/C2 work of finding its vertex.

Domain is what you input the machine of Maths and the range is what you get in the end.

Agree with youI should stop my silly mistake as well,something like domain and range,and use radian and degree to calculate somethings,alway forgot to turn the mode in my calculator.The mid-odinate rule are very easy getting wrong........ So now I am so careful to do every pastpaper,but I haven't do so much Solomon paper as they have somethings different with AQA,like I never seen integration by subsitution have u^2,and I have no idea how to do it.

Anyway,thanks for explain it. So is it range is for y,domain is for x?

Hey guys, I was just going through the textbook and there was a section on standard integrals, which I don't remember going through in class.

So basically, I was just wondering, if there was a standard integral question, would they give us the substitution to use, or would they expect us to recognise it and go through it ourselves? thanks