help writting c program

I need to write a program that does this: Write a C program that has a declaration in main() to store the following numbers into an array named channels: 2, 4, 5, 7, 9, 11, 13. There should be a function call to display() that accepts the channels as an argument named channels and then displays the numbers using the pointer notation *(channels + i).

then i have to

Modify this display() function to alter the address in channels. Always use the expression *channels rather than *(channels + i) to retrieve the correct elements.

i have no idea how to do this can someone give me an example or some help please!!!!!!!!!