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

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,588

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

**krassi_holmz****Real Member**- Registered: 2005-12-02
- Posts: 1,905

The first letter is X, I guess.

IPBLE: Increasing Performance By Lowering Expectations.

Offline

**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,588

Your on the right track! Nice work krassi_holmz.

**igloo** **myrtilles** **fourmis**

Offline

**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,588

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

**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,657

Let's leave it for a while ...

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

Offline

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

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

**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,588

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

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

Offline

**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,588

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

**igloo** **myrtilles** **fourmis**

Offline

Pages: **1**