how can i implement this on C#? Please explain for better understanding.

Given the following function: (a) y-x2 (b) y-2* (c)y-x3 - 2x2 - 5x +6 (d) y-x3 Prove that: Item (a) is not 1-1 and not onto. (b) is 1-1 but not onto. (c) is not 1-1 but it is onto and (d) is 1-1 and onto For each one makes the following: (a) Input a set of values for X (by keyboard) (b) Print the set of values of Y (c) Test if is onto, 1-1, Output the result Given the following function: (a) y-x2 (b) y-2* (c)y-x3 - 2x2 - 5x +6 (d) y-x3 Prove that: Item (a) is not 1-1 and not onto. (b) is 1-1 but not onto. (c) is not 1-1 but it is onto and (d) is 1-1 and onto For each one makes the following: (a) Input a set of values for X (by keyboard) (b) Print the set of values of Y (c) Test if is onto, 1-1, Output the result