CP M.7 Functions Assessment Review

Why do we use functions?

• To stop the program from repeating.

• To test for true and false.

• To simplify code.

• To ask the user for input.

The _____________ go above the _____________ in the source code file

• main program, return

• main program, functions

• subprograms, main program

• def, functions

Does the following code return a string or a number?

def f():

return "3"

• string

• number

It is necessary to do something to the value returned by a function; otherwise the value will not be stored in memory and will be lost.

• True

• False

A variable used to send information to a function.

• return

• Parameter

• Tracing code

• def

We call the central part of the program the ______________ program

• main

• def

• sub

• return

Which of the following parameters is optional?

sample ( a, b, c, d = 121)

• a

• d

• c

• b

Answer explanation

d has a default value (121) and thus is optional

Consider the following code:

def tryIt (an):

val = an * 2

c = 0

if (val < 0):

c = 1

return c

Which variable is the parameter?

We ________ to separate the code in functions from the main code.

Consider the following code:

def addIt (a, b):

return a + b

print (a)

What is wrong?

• There should be a third parameter.

• The method cannot return a value.

• The method should only have one parameter.

• The print statement cannot be reached.