Maths, Addmaths and Statistics: Post your doubts here!

[FLRNAB]

Uhmm...just google "image uploader" or something and upload the images. (and give me the link)

Or, make a picasa/instagram account and upload into them (and tell me the account). It takes barely 5 mins

It's beside the smiley button.

 

[Bilal Kamal]

Well can you give me the lists of all the possible graphs?

check out D2 chapter 8 and 9 and then D4 chapter 1 these are the graph chapters. study the examples , everything is well explained and focus on the shapes of the graphs

 

[***amd***]

Awesome12 and FLRNAB
this is not a gif thread, so plz stop it b4 you guys are warned.

 

[Awesome12]

Awesome12 and FLRNAB
this is not a gif thread, so plz stop it b4 you guys are warned.

You do have a point

 

[Mahnoorfatima]

Thanks. But still - can you just tell me the possible equations?

Like y=x^2 etc etc? Coz Googling them gives A Level/SAT answers. Google Graphs will sketch the equation into the graph - but I need to know the equations!

Damn that's gonna take too much time, check out the book that Ahmed told you. D4 or something . They have graphs there . I've seen them.

 

[Mahnoorfatima]

http://papers.xtremepapers.com/CIE/...Calculator Version) (4024)/4024_w13_qp_12.pdf
Question 21 b and c anyone? Please.,?

 

[***amd***]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_w13_qp_12.pdf
Question 21 b and c anyone? Please.,?

solve it by making a tree diagram, that will help.

 

[FLRNAB]

How are you supposed to do these questions? Don't just tell me the answers - tell how did you solve this. I know nothing on these questions

Equation of a straight line y=mx+c

a) y=x^3
Lets put a few points here.
let x be -2 then y = -8
Let x be 0 then y = 0 Only figure 6
Let x be -1 then y = -1
Let x be 1 then y = 1
let x be 2 then y = 8

b) y = 1/x^2
let x be -2 then y = -1/8
let x be -1 then y = -1
let x be zero then y is undefined so this won't be a point on the graph ie y-axis and x-axis is not touched so fig 4 and 1
let x be 1 then y = 1
let x be 2 the y = 1/8

Observation:
x = -1, y = -1
x = 1, y = 1
Only fig 1 shows this

c) y=x -1
so -1 is y-intercept. Only 2 figures 5 and 2
coefficient of x is positive so gradient is positive. Only 1 figure 2

 

[Asad.Babur]

well normally
A= ~78%
A* = ~88%
Distinction = 102% ( not only do you need full in maths but must have everything done neatly and efficiently )

I may stop dreaming for one in life from now on!

 

[Asad.Babur]

Ham yahan najoomi bethey hain kia

LOLX! Though so!

 

[exploded diper]

Thanks. But still - can you just tell me the possible equations?

Like y=x^2 etc etc? Coz Googling them gives A Level/SAT answers. Google Graphs will sketch the equation into the graph - but I need to know the equations!

i guess its pg number 17 d4

 

[peacce]

http://papers.xtremepapers.com/CIE/...(Calculator Version) (4024)/4024_s07_qp_2.pdf
Sec B q7 Aii. anyone?

 

[peacce]

what years r u guys focusing? exploded diper funky brat and otherssssssssss

 

[Dark Destination]

What formulas do we need to know for sequences and patterns?

Like this question. Find the nth term of --> 3,6,10,15,21..

How do we find it? :/

 

[Dark Destination]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s07_qp_2.pdf
Sec B q7 Aii. anyone?

Paper 2 :/ Don't we have paper 1 on monday?

 

[Mahnoorfatima]

In rotation does the orientation of the shape changes? I mean from anticlockwise to clockwise? In reflection it does ,right?

 

[Dark Destination]

In rotation does the orientation of the shape changes? I mean from anticlockwise to clockwise? In reflection it does ,right?

Yes, it does change in both.

 

[Mahnoorfatima]

Yes, it does change in both.

Whaaaaat! I think it doesn't. We'll then how are we supposed to know the difference between the two?

 

[asadalam]

In rotation does the orientation of the shape changes? I mean from anticlockwise to clockwise? In reflection it does ,right?

Yes, it does change in both.

No orientation means order of the shape i.e ABC,in reflection it might become ACB but in rotation it just changes it position and direction but not orientation,if we look at it from another angle it will still be ABC.

 

[Dark Destination]

Whaaaaat! I think it doesn't. We'll then how are we supposed to know the difference between the two?

It depends on the shape. If it's a square being reflected, then no change in orientation..
But if its a triangle with unequal sides or something, it will become laterally inverted.. That's for reflection!

But for rotation, it turns, depending on the angle of rotation.