math problem mike bayville only

A one-to-one function and its inverse can be used to make information secure.  The function is used to encrypt a message, and its inverse is used to decrypt the encrypted message.

The following numerical values are assigned to each letter of the alphabet:

A

1

B

2

C

3

D

4

E

5

F

6

G

7

H

8

I

9

J

10

K

11

L

12

M

13

N

14

O

15

P

16

Q

17

R

18

S

19

T

20

U

21

V

22

W

23

X

24

Y

25

Z

26

 Using the function f(x)=3x-1, the message “HELLO” would be encrypted 23 14 35 35 44 since H corresponds to 8 and

 f(8)=3(8)-1=23, etc.

 

This week, each student is to use a one-to-one function to encode a word, phrase, or sentence that relates to some topic that we have covered in this class.  Post your function and your encrypted message to the discussion forum.

 

 

Extra info

Here is an example of one that someone elese in class did. I didnt see any other instructions from the professor.

 

F(x)=2x+5

8,1,16,16,25…..13,15,13,19……4,1,25!