Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2005-12-22 07:34:09

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,566

Secret message

Graph the twelve equations
on top of each other for a message.
1. y= (3/2)x+1;


2. y= (-3/2)(x-2)+1;

3. y= 9(x-3)+4;

4. y= -9(x-5)+4;

5. y= -(x-4)+3;

6. y= (x-4)+3;

7. y= 2;  19/3 < x < 23/3
8. y= 3(x-6)+1;

9. y= -3(x-8)+1;

10. y= (1/2)(x-9)+1;

11. y= (-1/2)(x-10)+5/2;

12. y= (1/2)(x-11)+4;

Last edited by John E. Franklin (2005-12-22 08:01:47)


igloo myrtilles fourmis

Offline

#2 2005-12-23 09:41:45

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,908

Re: Secret message

The first letter is X, I guess.


IPBLE:  Increasing Performance By Lowering Expectations.

Offline

#3 2005-12-23 15:15:51

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,566

Re: Secret message

Your on the right track!  Nice work krassi_holmz.


igloo myrtilles fourmis

Offline

#4 2005-12-31 20:06:03

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,566

Re: Secret message

I tried to use the "spoiler" BB Code to hide the answer, but it didn't work.
[font=Courier]Maybe I'll use the hide tag later.[/font]

Last edited by John E. Franklin (2005-12-31 20:09:10)


igloo myrtilles fourmis

Offline

#5 2005-12-31 21:55:57

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,552

Re: Secret message

Let's leave it for a while ...


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

Offline

#6 2006-01-01 00:01:46

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: Secret message

It didn't work because the BB Code is 'hide' instead of 'spoiler'

{hide=Click!}Yay! You clicked!{/hide} (replace {} with []) gives

(You could also hide text like this. It relies on people using the right skin, though.)


Why did the vector cross the road?
It wanted to be normal.

Offline

#7 2006-12-03 15:05:49

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,566

Re: Secret message

Well a year has almost passed since I posted these 12 equations, and no one solved!!
Oh well, maybe it's just too hard.
A trick is the subtraction signs in the equations, they move the lines the opposite direction.
Negative moves right, positive moves left, best I can remember.
Or you could just plug in the end points in the range of x, and get endpoints for y and plot it on graph paper...
Good Luck this year on the secret message...


igloo myrtilles fourmis

Offline

#8 2006-12-03 17:57:05

Toast
Real Member
Registered: 2006-10-08
Posts: 1,321

Re: Secret message


big_smile

Offline

#9 2006-12-04 15:51:48

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,566

Re: Secret message

You got the right answer!!! Nice work Toast!!!!!!


igloo myrtilles fourmis

Offline

Board footer

Powered by FluxBB