Which of the following statement is true, after the execution of the following s

Question

Which of the following statement is true, after the execution of the following statement? set nee O A random number is generated between 5 and 10. O The random number is assigned to the variable needANumber. O The numbers 5 and 10 are the arguments of the random number function. O All of the above None of the above QUESTION 10 Which of the following statement is true, after the execution of the following statement?y-abs(ox) y contains the absolute value of x x contains the absolute value of y x contains the absolute value of the value in y contains the absolute value of the value in x None of the above QUESTION 11 True/False: Library functions are built into the pro gramming language, and can be called any time they are needed. True False QUESTION 12 what term is used in the ending terminal symbol of a function flowchart? Return End Function End Function Return None of the above

Explanation / Answer

Question 9 - set needANumber = random(5,10) . The answer to this question is All of the Above.

random(5,10) is a function call where random() is a function name and 5,10 are the inputs passed to this function. When we give these inputs, a random number between 5 and 10 is generated and is assigned to the variable on the left, which in this case is needANumber.

Question 10 - The answer to this question is : y contains the absolute value of the value in x.  

When we write y=abs(x) , the function abs() is called. abs() returns the absolute value of an integer. Absolute value of an integer is the positive value of an integer. Ex: absolute value of -38 is 38. So if we write abs(-38), this function call will return the value 38. And if we write, int a=abs(-38), then the absolute value of -38 (which is 38) is stored in a.

Now when I write y=abs(x), here x is a variable. So the value stored in y is the absolute value of the value stored in x. Hoping you understood.

Question 11 - The answer to this question is False. This question has 2 parts, lets look at them one by one.

A) Library functions ae built into the programming language : Yes, this part of the statement is TRUE. Library functions are also known as built-in or pre-defined functions. This means, that the working of these functions has already been defined in the programming language, and while using these functions we needn't define HOW to perform. We just need to call that function.

B) Library functions can be called any time they are needed. : This part of the statement is PARTIALLY TRUE. Yes, they can be called anytime when needed, BUT on the condition that the library file(or the header file) in which that function is defined has been included. Lets take an example. Suppose, in the previous question we just learnt what is the role of abs() function. Now suddenly, in a program we need to call abs() function. We can call it anywhere in the program, provided that we have included the header file <math.h> (if we are working in C/C++), because the compiler won't know what the function does. The functioning of abs() is defined in <math.h>. So when the compiler reads that a call to function abs() is made, it first open the header file, reads how the abs() has to be performed, and then throws the output.

Similar is the case for every standard/library/built-in/predefined function. Hence, had the statement mentioned that "Library functions are built into the programming language, and can be called anytime ther are needed; provided the respective header files have been included.", then the answer would be TRUE.

But in this case, the answer stands as FALSE.

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