Unit 7

Question 1

how many values can a function return at a time

Answer 1

functions can only return one value at a time

Question 2

a function can have

Answer 2

• parameters & return values in any capacity

Question 3

parameter

Answer 3

a variable in a function definition
- used as a placeholder for values that will be passed through the function

Question 4

argument

Answer 4

the vlaue passed to the parameter

Question 5

return

Answer 5

• used to return the flow of control to the point where the procedure was called and to return the value of expression

Question 6

procedural abstraction

Answer 6

extracting shared features to generalize functionality

Question 7

how do you generalize functions

Answer 7

using parameters

Question 8

benefits of procedural abstraction

Answer 8

• improves code readability
• allows for code reuse

Question 9

library

Answer 9

a collection of functions that can be used in many different programs

Question 10

a library should have documentation for the included functions:

Answer 10

• how each function works
• a complete list of the parameters
• what (if anything) will be returned

Question 11

APIs (application program interface)

Answer 11

specifications for how the functions in a library behave and can be used

Question 12

procedural abstraction allows functions to be used without

Answer 12

knowing their inner workings enabling modularity, which organizes programs into separate subprograms, like libraries do

Question 13

to use a library

Answer 13

call the function by writing the library name, a dot, the name of the function, and including any arguments for the parameters