8. Programming

Question 1

What happens when a function is called

Answer 1

• a call statement is used/the function is called using its identifier
• parameters are/may be passed to the function from the main program
• the function performs its task
• …and returns a value to the main program

Question 2

How variables/constants are used in programming

Answer 2

• used to store items of data
• the data stored is accessed using an identifier
• the value of a variable may change during the execution of a program
• the value of a constant will stay the same during the execution of a program