Section 6.1 Quiz 6.7 
Question: 
Use the horizontal line test to determine whether the given function is onetoone 

No Yes 

Variations: 
Use the horizontal line test to determine whether the given function is onetoone 

Use the horizontal line test to determine whether the given function is onetoone 

Use the horizontal line test to determine whether the given function is onetoone 
Section 6.1  Question: 
Which of the following is the inverse function of f (x) = 2x + 5? 

Quiz 6.8 
(x – 5)/2 –2(x – 5) –2x – 5 x/2 – 5 

Variation: 
Which of the following is the inverse function of f (x) = –x/3 – 5? 

x/3 + 5 (x + 5)/3 –3(x + 5) –3x + 5 
Section 6.3 Quiz 7.1 
Question: 
Convert the following logarithmic equation to exponential form


Variations: 
Convert the following logarithmic equation to exponential form


Convert the following logarithmic equation to exponential form


Section 6.3 Quiz 7.2 
Question: 
Find the value of the expression


Variations: 
Find the value of the expression


Find the value of the expression


Find the value of the expression


Find the value of the expression


Find the value of the expression


Section 6.3 Quiz 7.3 
Question: 
Give the domain of the function


Variation: 
Give the domain of the function


Section 6.4 Quiz 7.4 
Question: 
Simplify the following expression using the formula for the sum or difference of logarithms.


(log_{2} x) / (log_{2} 3) 12 log_{2} x – 12 log_{2} 3 (6 log_{2} x) / (log_{2} 3) 12 log_{2} x 6 log_{2} (x + 3) + 6 log_{2} (x – 3) 

Variations: 
Simplify the following expression using the formula for the sum or difference of logarithms.


(6 ln x) / (2 ln 3 + ln x) 6 ln x – 6 ln 3 3 ln x + 3 ln (x – 9) (2 ln x) / (2 ln 3 + ln x) 3 ln x – 6 ln 3 

Simplify the following expression using the formula for the sum or difference of logarithms.


12 log x + 12 log 3 18 log x + 12 log 3 6 log x + 6 log (x + 9) 48 log (3x) 288 log (12x) 
Section 6.5 Quiz 7.5 
Question: 
Solve the equation


Variations: 
Solve the equation


Solve the equation


Section 6.6 Quiz 7.6 
Question: 
If you invest $500.00 at an annual interest rate of 8% compounded monthly, how much will you have in 5 years? Express your answer to the nearest cent. 

Section 6.7 Quiz 7.7 
Question: 
A radioactive substance decays exponentially, so the amount A left at time t is given by A = A_{0} e^{kt}, where k < 0. If there are 500 units of the substance initially and 149 units after 6 hours, what is the decay constant k (in hr^{1})? Express your answer to three decimal places and include the negative sign. 

Section 6.7 Quiz 7.8 
Question: 
An epidemic is believed to be in an exponential phase of growth. If there have been 53 cases reported as of April 4, and 107 cases reported as of April 20, how many cases should be expected as of April 30? Give your answer to the nearest integer. 
