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,Question 1
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This question is based on question 1 in the written Assignment 4.
The program in question 1 of the written assignment, contains an incomplete recursive function
raised_to_power(). This function returns the value of the first parameter number of type float
raised to the value of the second parameter power of type int for all values of power greater than
or equal to 0.
The correct function header for the function raised_to_power() is
Select one:
float raised_to_power(float number, int power) int raised_to_power(float
number, int power) float raised_to_power(int number, float power) float
raised_to_power(float number, float power)
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The correct answer is: float raised_to_power(float number, int power)
Question 2
Correct
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This question is based on question 1(b) in the written Assignment 4.
The program in question 1 of the written assignment, contains an incomplete recursive function
raised_to_power(). This function returns the value of the first parameter number of type float raised
to the value of the second parameter power of type int for all values of power greater than or equal
to 0.
Based on the fact that any value raised to the power of 0 is 1, the base case for this function is
Select one:
else if (power == 0) return
(1.0); else if (power == 1)
return (1.0); else if (power > 0)
return (1.0);
else if (power == 0)
return (number * raised_to_power(number, power - 1));
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, Feedback
The correct answer is: else if (power == 0) return (1.0);
Question 3
Incorrect
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This question is based on work for question 1 in the written Assignment 4.
With recursion, the base case must eventually be reduced to a general case.
Select one:
True
False
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The correct answer is ’False’.
Question 4
Incorrect
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Question text
This question is based on question 2(a) in the written Assignment 4. Question 2 included a code
fragment that you had to answer questions on. This is an extract from the code fragment: 6: class A
7: {
8: private:
9: int x;
10: protected: 11: int
getX(); 12: public:
13: void setX(); 14: }; 15:
16: int A::getX()
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, 17: {
18: return x; 19: } 20:
21: void A::setX()
22: {
23: x=10;
24: }
The reason why line 18 is a valid access in this code fragment, is because the variable x is a private
data member of the class A. Private data members can only be accessed by other member functions
and operators of the class A. getX() is a member function of class A and therefore line 18 is a valid
access.
Select one:
True
False
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The correct answer is ’True’.
Question 5
Incorrect
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Question text
This question is based on question 2(c) in the written Assignment 4. Question 2 included a code
fragment that you had to answer questions on. This is an extract from the code fragment: 27: class B
28: {
29: private:
30: int y;
31: protected:
32: A objA; 33: int
getY(); 34: public:
35: void setY();
37: };
38:
39: void B::setY()
40: {
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,Question 1
Correct
Mark 1.00 out of 1.00
Flag question
Question text
This question is based on question 1 in the written Assignment 4.
The program in question 1 of the written assignment, contains an incomplete recursive function
raised_to_power(). This function returns the value of the first parameter number of type float
raised to the value of the second parameter power of type int for all values of power greater than
or equal to 0.
The correct function header for the function raised_to_power() is
Select one:
float raised_to_power(float number, int power) int raised_to_power(float
number, int power) float raised_to_power(int number, float power) float
raised_to_power(float number, float power)
Feedback
The correct answer is: float raised_to_power(float number, int power)
Question 2
Correct
Mark 1.00 out of 1.00
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Question text
This question is based on question 1(b) in the written Assignment 4.
The program in question 1 of the written assignment, contains an incomplete recursive function
raised_to_power(). This function returns the value of the first parameter number of type float raised
to the value of the second parameter power of type int for all values of power greater than or equal
to 0.
Based on the fact that any value raised to the power of 0 is 1, the base case for this function is
Select one:
else if (power == 0) return
(1.0); else if (power == 1)
return (1.0); else if (power > 0)
return (1.0);
else if (power == 0)
return (number * raised_to_power(number, power - 1));
Downloaded by Vincent master ()
, Feedback
The correct answer is: else if (power == 0) return (1.0);
Question 3
Incorrect
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Question text
This question is based on work for question 1 in the written Assignment 4.
With recursion, the base case must eventually be reduced to a general case.
Select one:
True
False
Feedback
The correct answer is ’False’.
Question 4
Incorrect
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Question text
This question is based on question 2(a) in the written Assignment 4. Question 2 included a code
fragment that you had to answer questions on. This is an extract from the code fragment: 6: class A
7: {
8: private:
9: int x;
10: protected: 11: int
getX(); 12: public:
13: void setX(); 14: }; 15:
16: int A::getX()
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, 17: {
18: return x; 19: } 20:
21: void A::setX()
22: {
23: x=10;
24: }
The reason why line 18 is a valid access in this code fragment, is because the variable x is a private
data member of the class A. Private data members can only be accessed by other member functions
and operators of the class A. getX() is a member function of class A and therefore line 18 is a valid
access.
Select one:
True
False
Feedback
The correct answer is ’True’.
Question 5
Incorrect
Mark 0.00 out of 1.00
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Question text
This question is based on question 2(c) in the written Assignment 4. Question 2 included a code
fragment that you had to answer questions on. This is an extract from the code fragment: 27: class B
28: {
29: private:
30: int y;
31: protected:
32: A objA; 33: int
getY(); 34: public:
35: void setY();
37: };
38:
39: void B::setY()
40: {
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