Silly Questions Thread

[the.watchman]

Thanks, so how did you know that the points were in the third quandrant? wouldn't that be the 2nd quadrant (top left hand) seeing as the x point is negative whilst the y point is positive (-8,2)....

Woops, another mistake. :p Yeah it's in the second quadrant. Doesn't make a difference though.

Alright so dividing it by three has no correlation with the quadrant? then how did you know to divide it by three, or would you divide by three in any case? lol sorry for all these questions

You would divide the line into three parts, as from "AP:PB = 2:1", you can see that the line should be split into 2+1=3 parts. Then the point P would be two 'parts' along from A
I hope this explanation helps

[Aqualim]

Thanks, so how did you know that the points were in the third quandrant? wouldn't that be the 2nd quadrant (top left hand) seeing as the x point is negative whilst the y point is positive (-8,2)....

Woops, another mistake. :p Yeah it's in the second quadrant. Doesn't make a difference though.

Alright so dividing it by three has no correlation with the quadrant? then how did you know to divide it by three, or would you divide by three in any case? lol sorry for all these questions

You would divide the line into three parts, as from "AP:PB = 2:1", you can see that the line should be split into 2+1=3 parts. Then the point P would be two 'parts' along from A
I hope this explanation helps

ahh ok so if it said something like 'AP:PB = 4:3' would that mean you divide by 7? as P is four parts away from A and 3 parts away from B?

I hope thats right

[the.watchman]

Thanks, so how did you know that the points were in the third quandrant? wouldn't that be the 2nd quadrant (top left hand) seeing as the x point is negative whilst the y point is positive (-8,2)....

Woops, another mistake. :p Yeah it's in the second quadrant. Doesn't make a difference though.

Alright so dividing it by three has no correlation with the quadrant? then how did you know to divide it by three, or would you divide by three in any case? lol sorry for all these questions

You would divide the line into three parts, as from "AP:PB = 2:1", you can see that the line should be split into 2+1=3 parts. Then the point P would be two 'parts' along from A
I hope this explanation helps

ahh ok so if it said something like 'AP:PB = 4:3' would that mean you divide by 7? as P is four parts away from A and 3 parts away from B?

I hope thats right

Yep, you're getting the hang of it!

[Aqualim]

Excellent! how do you know the answer to basically ever question? lol sometimes the figures and wording throws me off completely

[the.watchman]

Excellent! how do you know the answer to basically ever question? lol sometimes the figures and wording throws me off completely

I don't, I just have a train of thought that I follow, so I don't have to show working elsewhere
Once you do enough questions, you should be able to see patterns in the solution methods etc.

[Cthulhu]

(He looks in the back of the book

[the.watchman]

(He looks in the back of the book

My textbook remains at school (I'm not lying! )

[TrueTears]

Thanks, so how did you know that the points were in the third quandrant? wouldn't that be the 2nd quadrant (top left hand) seeing as the x point is negative whilst the y point is positive (-8,2)....

Woops, another mistake. :p Yeah it's in the second quadrant. Doesn't make a difference though.

Alright so dividing it by three has no correlation with the quadrant? then how did you know to divide it by three, or would you divide by three in any case? lol sorry for all these questions

You would divide the line into three parts, as from "AP:PB = 2:1", you can see that the line should be split into 2+1=3 parts. Then the point P would be two 'parts' along from A
I hope this explanation helps

ahh ok so if it said something like 'AP:PB = 4:3' would that mean you divide by 7? as P is four parts away from A and 3 parts away from B?

I hope thats right

Eh just do it algebracally, just change the ratios to fractions, just different notation, concept is the same...

[the.watchman]

Thanks, so how did you know that the points were in the third quandrant? wouldn't that be the 2nd quadrant (top left hand) seeing as the x point is negative whilst the y point is positive (-8,2)....

Woops, another mistake. :p Yeah it's in the second quadrant. Doesn't make a difference though.

Alright so dividing it by three has no correlation with the quadrant? then how did you know to divide it by three, or would you divide by three in any case? lol sorry for all these questions

You would divide the line into three parts, as from "AP:PB = 2:1", you can see that the line should be split into 2+1=3 parts. Then the point P would be two 'parts' along from A
I hope this explanation helps

ahh ok so if it said something like 'AP:PB = 4:3' would that mean you divide by 7? as P is four parts away from A and 3 parts away from B?

I hope thats right

Eh just do it algebracally, just change the ratios to fractions, just different notation, concept is the same...

nice idea

[Aqualim]

Thanks, so how did you know that the points were in the third quandrant? wouldn't that be the 2nd quadrant (top left hand) seeing as the x point is negative whilst the y point is positive (-8,2)....

Woops, another mistake. :p Yeah it's in the second quadrant. Doesn't make a difference though.

Alright so dividing it by three has no correlation with the quadrant? then how did you know to divide it by three, or would you divide by three in any case? lol sorry for all these questions

You would divide the line into three parts, as from "AP:PB = 2:1", you can see that the line should be split into 2+1=3 parts. Then the point P would be two 'parts' along from A
I hope this explanation helps

ahh ok so if it said something like 'AP:PB = 4:3' would that mean you divide by 7? as P is four parts away from A and 3 parts away from B?

I hope thats right

Eh just do it algebracally, just change the ratios to fractions, just different notation, concept is the same...

nice idea

Ooo, this sounds better, anyone like to show me? sorry about this :S

[TrueTears]

1:2 = 1/2

a:b = a/b

[Aqualim]

oh, i meant like the whole cha-bang.. thanks anyway

[TrueTears]

AP:PB = 2:1

AP/PB = 2/1

AP = 2PB

Thus AB = AP+2PB

[the.watchman]

AP:PB = 2:1

AP/PB = 2/1

AP = 2PB

Thus AB = AP+2PB

Yup, then follow on with the rest of the working shown earlier to find point P

[Aqualim]

ok thanks.. This is a follow up question;

Find the magnitude of BAC in degrees correct to one decimal place if A=(-8,2), B=(-6,10) and C=(4,11)