Trình bày cách mã hóa và giải mã của Caesar cho nội dung sau “Discrete Mathematics course teach students how to think logically and mathematically ” với f(p)= (p + k)
mod 26. trong đó k = 3
Ví dụ s4=3 thì f(p)= (p + 3) mod 26

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.