Write the definition of a function that takes as input three numbers. The function returns true if the floor of the product of the first two numbers equals the floor of the third number; otherwise it returns false. (Assume that the three numbers are of type double.)

2)Why do you need to include function prototypes in a program that contains user-defined functions? (5)

Question 5 options:

In a C++ program, typically the function main appears after any other user-defined function. The compiler compiles the program sequentially from beginning to end. Now the function main contains calls to user-defined functions. So to correctly translate each function call, the user-defined function prototypes appears before any function definition. Because function prototypes appear before any function definition, the compiler translates these first. The compiler can then correctly translate a function call.

In a C++ program, typically the function main appears before any other user-defined function. The compiler compiles the program sequentially from beginning to end. Now the function main contains calls to user-defined functions. So to correctly translate each function call, the user-defined function prototypes appears before any function definition. Because function prototypes appear before any function definition, the compiler translates these first. The compiler can then correctly translate a function call.

In a C++ program, typically the function main appears before any other user-defined function. The compiler compiles the program sequentially from beginning to end. Now the function main contains calls to user-defined functions. So to correctly translate each function call, the user-defined function prototypes appears after any function definition. Because function prototypes appear before any function definition, the compiler translates these first. The compiler can then correctly translate a function call.

In a C++ program, typically the function main appears before any other user-defined function. The compiler compiles the program sequentially from beginning to end. Now the function main contains calls to user-defined functions. So to correctly translate each function call, the user-defined function prototypes appears before any function definition. Because function prototypes appear after any function definition, the compiler translates these first. The compiler can then correctly translate a function call.

3)

Write the definition of a void function with three reference param- eters of type int, double, and string. The function sets the values of the int and double variables to 0 and the value of the string variable to an empty string. (6, 7, 8)

Question 12 options:

void sumAvg(double x, double y, double z, double& sum,

double & avg, string& result)

{

sum = x + y + z;

avg = sum / 3;

if (avg >= 70)

result = "Pass";

else

result = "Fail";

}

void sumAvg(double x, double y, double z, double& sum,

double & avg, string& result)

{

sum = x - y + z;

avg = sum / 3;

if (avg >= 70)

result = "Pass";

else

result = "Fail";

}

void sumAvg(double x, double y, double z, double& sum,

double & avg, string& result)

{

sum = x + y + z;

avg = sum / 3;

if (avg > 70)

result = "Pass";

else

result = "Fail";

}

void sumAvg(double x, double y, double z, double& sum,

double & avg, string& result)

{

sum = x + y + z;

avg = sum * 3;

if (avg >= 70)

result = "Pass";

else

result = "Fail";

}

4)

Write the definition of a void function that takes as input two integer values, say n and m. The function returns the sum and average of all the numbers between n and m (inclusive) . (6, 7, 8)