Algebraic Manipulation - Quiz 2    Question

Question 1

Which of the following correctly makes    the subject of  

a)				b)
c)				d)

 

Not correct. Choice (a) is false.

Try again, you haven’t performed the operations in the right order, watch the signs.

Not correct. Choice (b) is false.

Try again, you haven’t performed the operations in the right order.

Your answer is correct.

If     then     and

Not correct. Choice (d) is false.

Try again, you have confused the coefficients of    and 

Question 2

Is the following factorized correctly?

     

a)		True.		b)		False.

 

Your answer is correct.

Yes this is factorized correctly.

Not correct. Choice (b) is false.

Try again, this is factorized correctly.

Question 3

Which of the following are correctly factorized?
There may be more than one correct answer.

a)
b)
c)
d)
e)

 

There is at least one mistake.
For example, choice (a) should be false.

There is at least one mistake.
For example, choice (b) should be true.

There is at least one mistake.
For example, choice (c) should be true.

There is at least one mistake.
For example, choice (d) should be false.

There is at least one mistake.
For example, choice (e) should be true.

Your answers are correct

1. False.
2. True.
3. True.
4. False.
5. True.

Question 4

Which of the following correctly makes     the subject of  

a)				b)
c)				d)

 

Not correct. Choice (a) is false.

Try again, you cannot just swap the    and the 

Your answer is correct.

  so  
Hence  

Not correct. Choice (c) is false.

Try again, you have found  

Not correct. Choice (d) is false.

Try again, you have not performed the operations in the correct order.

Question 5

Which of the following makes    the subject of the formula 

a)				b)
c)				d)

 

Not correct. Choice (a) is false.

Try again, you haven’t dealt with the square root sign.

Not correct. Choice (b) is false.

Try again, you have found 

Your answer is correct.

If     then     and

Not correct. Choice (d) is false.

Try again, you can’t just swap    and