Question 1

Graph the function.
-

Accepted Answer

A)   
B)   
C)   
D)

Question 2

Solve the problem. When needed, use 365 days per year and 30 days per month.
-An initial investment of $14,000 is appreciated for 3 years in an account that earns 14% interest, compounded semiannually. Find the amount of money in the account at the end of the period.

Accepted Answer

A)  $19,635.72 
B)  $21,010.22 
C)  $7010.22 
D)  $20,741.62

Question 3

Solve the equation.
-

Accepted Answer

A)  512 
B)   
C)   
D)  6561

Question 4

Solve the equation. Give an exact solution.
-

Accepted Answer

A)  No solution 
B)   
C)  8, 4 
D)

Question 5

Find the domain of the function.
-

Accepted Answer

A)   
B)   
C)   
D)

Question 6

Solve the following graphically. If necessary, round answers to the nearest thousandth.
-

Accepted Answer

A)  0.845, 0.778 
B)  -1 
C)  7, 6 
D)  1.946, 1.792

Question 7

Solve the equation.
-

Accepted Answer

A)  {4} 
B)   
C)   
D)  {-4}

Question 8

Solve the problem.
-In 5 years, only 2.7% of the current internet businesses will still be operating. Use the exponential model  to determine the annual rate of internet business failures.

Accepted Answer

A)  0.2% 
B)  31% 
C)  72% 
D)  65%

Question 9

Find the value of the logarithmic function.
-log(0.001)

Accepted Answer

A)  -2 
B)  -3 
C)  0 
D)  3

Question 10

Use a graph or a table to find the limit.
-

Accepted Answer

A)   
B)  1 
C)  10 
D)

Question 11

Solve the equation.
-

Accepted Answer

A)  -1 
B)   
C)   
D)  -6

Question 12

Find the function value.
-Let f(x) =  . Find f(-1).

Accepted Answer

A)   
B)  4 
C)   
D)  -4

Question 13

Simplify the expression.
-

Accepted Answer

A)   
B)  1 
C)   
D)  3

Question 14

Find the value of x.
-

Accepted Answer

A)  5 
B)  -6 
C)  -5 
D)  6

Question 15

Rewrite the expression as a single logarithm.
-

Accepted Answer

A)   
B)   
C)   
D)

Question 16

Solve the equation. Give an exact solution.
-

Accepted Answer

A)  2 
B)  3 
C)  -1 
D)  5

Question 17

Solve the following graphically. If necessary, round answers to the nearest thousandth.
-

Accepted Answer

A)  1, 0.138 
B)  0, 1 
C)  1, 0.019, 53.957 
D)  1, 3

Question 18

Solve the equation.
-

Accepted Answer

A)   
B)  {-3} 
C)   
D)  {3}

Question 19

Solve the equation.
-

Accepted Answer

A)  {5} 
B)  {3} 
C)  {-4} 
D)  {4}

Question 20

Graph the function.
-

Accepted Answer

A)   
B)   
C)   
D)

Exam 4: Exponential and Logarithmic Functions

Graph the function. -

Solve the problem. When needed, use 365 days per year and 30 days per month. -An initial investment of $14,000 is appreciated for 3 years in an account that earns 14% interest, compounded semiannually. Find the amount of money in the account at the end of the period.

Solve the equation. -

Solve the equation. Give an exact solution. -

Find the domain of the function. -

Solve the following graphically. If necessary, round answers to the nearest thousandth. -

Solve the equation. -

Solve the problem. -In 5 years, only 2.7% of the current internet businesses will still be operating. Use the exponential model to determine the annual rate of internet business failures.

Find the value of the logarithmic function. -log(0.001)

Use a graph or a table to find the limit. -

Solve the equation. -

Find the function value. -Let f(x) = . Find f(-1) .

Simplify the expression. -

Find the value of x. -

Rewrite the expression as a single logarithm. -

Solve the equation. Give an exact solution. -

Solve the following graphically. If necessary, round answers to the nearest thousandth. -

Solve the equation. -

Solve the equation. -

Graph the function. -