C++ Chapter 4: Making Decisions

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Questions and Answers

What is the purpose of relational operators in C++?

To display output to the screen
To perform arithmetic operations
To assign values to variables
To compare numeric and char values to determine relative order (correct)

The relational operator >= represents 'Less than or equal to'.

False (B)

Match the following relational operators with their meanings:

< = Less than

= Greater than = = Greater than or equal to <= = Less than or equal to

Which relational operator is used to determine if a value is greater than another value?

> (A) Signup and view all the answers

What is the purpose of the relational operator >= in a C++ program?

To determine if a value is greater than or equal to another value (C) Signup and view all the answers

Which of the following expressions is true if the value of x is 5 and the value of y is 7?

x < y (B) Signup and view all the answers

What is the result of the expression 5 >= 7 in a C++ program?

false (D) Signup and view all the answers

Which relational operator is used to determine if a value is less than or equal to another value?

<= (A) Signup and view all the answers

What is the result of the expression 7 > 5 in a C++ program?

true (B) Signup and view all the answers

Match the following relational operators with their meanings:

< = Less than <blockquote> = Greater than = = Greater than or equal to <= = Less than or equal to </blockquote> Signup and view all the answers

Match the following relational operators with their examples:

<blockquote> = 7 is true when compared to 5 <= = 5 is true when compared to 7 = = 5 is true when compared to 5 < = 5 is true when compared to 7 </blockquote> Signup and view all the answers

Match the following relational operators with their usage:

<blockquote> = Determining if a value is greater than another value < = Determining if a value is less than another value <= = Determining if a value is less than or equal to another value = = Determining if a value is greater than or equal to another value </blockquote> Signup and view all the answers

Match the following relational operators with their opposite:

<blockquote> = <= < = >= = = < <= = > </blockquote> Signup and view all the answers

Match the following relational operators with their usage in C++ programs:

<blockquote> = Evaluates to true if a value is greater than another value < = Evaluates to true if a value is less than another value = = Evaluates to true if a value is greater than or equal to another value <= = Evaluates to true if a value is less than or equal to another value </blockquote> Signup and view all the answers

Match the following relational operators with their purpose:

<blockquote> = Comparing numeric values to determine relative order < = Comparing char values to determine relative order = = Determining the relative order of numeric and char values <= = Validating user input in a C++ program </blockquote> Signup and view all the answers