MATH 1630 – Internet Name:
Spring 2009 Quiz 5
You must show all work to receive full credit. This quiz includes material from Sections 4.3, 5.1, 5.2 and 5.3
1. (3 points) Given that
()
3*4
x
fx=, determine
(
)
10f−. Express your answer in fractional form with no
decimals.
2. (4 points) If $4800 is invested for x years at 8%, compounded quarterly, the interest earned is
()
4
4800 1.02 4800
x
I=−
. Calculate the amount of interest earned in 7 years.
3. (3 points) Calculate a set of 3 points that are on the graph of
(
)
2
log
f
xx=
4. (4 points) List and label the domain and range of
(
)
3*7
x
fx=
Domain: Range:
5. (4 points) List and label the domain and range of
(
)
2
log
f
xx=
Domain: Range:
