Algebraic Manipulation - Quiz 1    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.

Your answer is correct.

If   then
and

Not correct. Choice (c) is false.

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

Not correct. Choice (d) is false.

Try again, watch the signs.

Question 2

Which of the following factorizes the expression     correctly?

a)
b)
c)
d)		All of the above.

 

Not correct. Choice (a) is false.

Try again, have you looked at all of the possibilities.

Not correct. Choice (b) is false.

Try again, have you looked at all of the possibilities.

Not correct. Choice (c) is false.

Try again, have you looked at all of the possibilities.

Your answer is correct.

They all correctly factorize the expression.

	=
and	=
and	=

Question 3

Which of the following makes the subject of  

a)
b)
c)
d)		None of the above.

 

Not correct. Choice (a) is false.

Try again, you don’t have all of the terms involving on the left hand side.

Your answer is correct.

First collect all terms involving and add to both sides to give

Then divide both sides by to give

Not correct. Choice (c) is false.

Try again, you don’t have all of the terms involving on the left hand side.

Not correct. Choice (d) is false.

Try again, there is a correct answer.

Question 4

Which of the following correctly represents if  

a)				b)
c)				d)

 

Not correct. Choice (a) is false.

Try again, you can’t just swap and

Not correct. Choice (b) is false.

Try again, you must multiply both sides by first.

Your answer is correct.

If   then     and  

Not correct. Choice (d) is false.

Try again, looking carefully at the signs.

Question 5

Which of the following makes the subject of the formula  

a)				b)
c)				d)

 

Your answer is correct.

If    then    and 
Hence 

Not correct. Choice (b) is false.

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

Not correct. Choice (c) is false.

Try again, you have found

Not correct. Choice (d) is false.

Try again, you can’t just swap and