Question 1

Graph.
-

Accepted Answer

A)   
B)   
C)   
D)

Question 2

Find the requested composition of functions.
-Given  .

Accepted Answer

A)   
B)   
C)   
D)

Question 3

Find the requested composition of functions.
-Given  find f°g(x).

Accepted Answer

A)   
B)   
C)   
D)

Question 4

Solve the problem.
-The number of dislocated electric impulses per cubic inch in a transformer increases when lightning strikes by D(x)=  where x is the time in milliseconds of the lightning strike. Find the number of dislocated impulses at x = 0 and x = 2 .

Accepted Answer

A) 1500 ; 13,500 
B) 1500 ; 40,500 
C) 4500 ; 13,500 
D) 1500 ; 9000

Question 5

Solve the problem.
-Suppose that $50,000 is invested at 8% interest, compounded annually. Find a function A for the amount in the account after t years.

Accepted Answer

A)   
B)   
C)   
D)

Question 6

Find f(x)and g(x)such that h(x)= 
-

Accepted Answer

A)   
B)   
C)   
D)

Question 7

Find f(x)and g(x)such that h(x)= 
-

Accepted Answer

A)   
B)   
C)   
D)

Question 8

Find an equation of the inverse of the relation.
-

Accepted Answer

A)   
B)   
C)   
D)

Question 9

Graph the equation of the relation using a solid line, and then graph the inverse of the relation using a dashed line.
-

Accepted Answer

A)   
B)   
C)   
D)

Question 10

Find the requested composition of functions.
-Given  , find f°g(x).

Accepted Answer

A)   
B)   
C)   
D)

Question 11

Find f(x)and g(x)such that h(x)= 
-

Accepted Answer

A)   
B)   
C)   
D)

Exam 8: Exponential Functions and Logarithmic Functions

Graph. -

Find the requested composition of functions. -Given .

Find the requested composition of functions. -Given find f°g(x) .

Solve the problem. -The number of dislocated electric impulses per cubic inch in a transformer increases when lightning strikes by D(x) = where x is the time in milliseconds of the lightning strike. Find the number of dislocated impulses at x = 0 and x = 2 .

Solve the problem. -Suppose that $50,000 is invested at 8% interest, compounded annually. Find a function A for the amount in the account after t years.

Find f(x) and g(x) such that h(x) = -

Find f(x) and g(x) such that h(x) = -

Find an equation of the inverse of the relation. -

Graph the equation of the relation using a solid line, and then graph the inverse of the relation using a dashed line. -

Find the requested composition of functions. -Given , find f°g(x) .

Find f(x) and g(x) such that h(x) = -