
1

A
=
0
1
A
= 
1.
ƒ
ƒ
ƒ
ƒ
ƒ
ƒ
133.
If
is undefined, and
F
(
1)
4, find
C
and
D.
134.
Construct a function that is undefined at
x
5 and whose
graph passes through the point (1,
1).
F
(
x
)
=
C

x
D

x
,
F
(

2)
In Exercises 135 and 136, find the domain of each function,
where
a
is any positive real number.
135.
136.
f
(
x
)
= 
5
2
x
2

a
2
f
(
x
)
=

100
x
2

a
2
137.Using a graphing utility, graph the temperature function inExercise 103. What time of day is it the warmest? What isthe temperature? Looking at this function, explain why thismodel for Tampa, Florida, is valid only from sunrise to sunset (6 to 18).
138.Using a graphing utility, graph the height of the firecrackerin Exercise 104. How long after liftoff is the firecrackerairborne? What is the maximum height that the firecrackerattains? Explain why this height model is valid only for thefirst 8 seconds.
139.
Using a graphing utility, graph the price function in Exercise
105. What are the lowest and highest prices of the cards?
140.
The makers of malted milk balls are considering increasing
the size of the spherical treats. The thin chocolate coating on
a malted milk ball can be approximated by the surface area,
S
(
r
)
4
r
2
. If the radius is increased 3 mm, what is the
resulting increase in required chocolate for the thin outer
coating?
141.Let . Graph and inthe same viewing window. Describe how the graph of canbe obtained from the graph of .
142.Let Graph and inthe same viewing window. Describe how the graph of canbe obtained from the graph of .y1
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 Summer '17
 juan alberto