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Logarithmic Functions
Quiz 1
Quiz 2
Quiz 3
Questions
right first
attempt
right
wrong
MathQuiz 4.2
University of Sydney
School of Mathematics
and Statistics
© Copyright 2004
Logarithmic Functions  Quiz 1
Question
Question 1
Is the following statement true or false?
a)
True.
b)
False.
Your answer is correct.
The natural log and exponential functions are inverse of each other so the statement is true.
Not correct. Choice
(b)
is
false
.
The natural log and exponential functions are inverse of each other so the statement is true.
Question 2
Which of the following is the value of
correct to 3 decimal places?
a)
0.693.
b)
0.135.
c)
0.
d)
None of the above.
Not correct. Choice
(a)
is
false
.
Try again, this is
Not correct. Choice
(b)
is
false
.
Try again, this is
Not correct. Choice
(c)
is
false
.
Try again, you may not have noticed the error message on your calculator.
Your answer is correct.
The natural log function is only defined for numbers greater than 0 so
is not defined.
Question 3
Which of the following is
correct to 3 decimal places?
a)
6.197.
b)
3.8918.
c)
44.171.
d)
10.197.
Your answer is correct.
Not correct. Choice
(b)
is
false
.
Try again, this is
Not correct. Choice
(c)
is
false
.
Try again, this is
Not correct. Choice
(d)
is
false
.
Try again, this is
Question 4
Which of the following solves
for
correct to 2 decimal places?
a)
b)
c)
d)
None of the above.
Not correct. Choice
(a)
is
false
.
Try again, this gives
Not correct. Choice
(b)
is
false
.
Try again, exponentiate both sides before trying to manipulate the equation.
Your answer is correct.
Exponentiate both sides which gives
Not correct. Choice
(d)
is
false
.
Try again,
is not necessarily negative.
Question 5
Which of the following solves
for
exactly?
a)
b)
c)
d)
Not correct. Choice
(a)
is
false
.
Try again, take away 3 from both sides before raising to the power of 10.
Your answer is correct.
Raise both sides to the power of 10 and
Not correct. Choice
(c)
is
false
.
Try again, you need to raise to the power 10, not
Not correct. Choice
(d)
is
false
.
Try again, you have solved
and then raise to the power of 10.