Add 5. Double the result. Subtract 8. Divide by 2. Subtract the original selected number.

First number is 2:

Second number is: 6

Third number is: 7

Fourth number is: 11

(a) Form a conjecture that relates the result of the process to the original number selected.

The result is:

)b) Represent the original number as n and use deductive reasoning to prove the conjecture in part (a)

Add 5

Double the result:

Subtract 8:

Divide by 2:

Subtract the original number: