1.
What is the equation of the vertical asymptote of the function
?
A.
x
= -4
B.
y
= 1
C.
x
= 2
D.
x
= 1
Hint
2.
Simplify
.
A.
B.
C.
D.
Hint
3.
Simplify
.
A.
B.
C.
D.
Hint
4.
For what value(s) of
x
is
undefined?
A.
–1
B.
6
C.
7, –1
D.
6, 7
Hint
5.
Simplify the expression
.
A.
B.
C.
D.
Hint
6.
The function
has which of the following properties?
A.
f(x) = 1 for all values of
x
.
B.
f(x) = 0 for all values of
x
.
C.
It has a hole at (3, 0).
D.
It has a hole at (3, 1).
Hint
7.
Suppose
r
varies jointly with
p
and
q
. If
p
increases and
q
decreases, what will happen to
r
?
A.
It stays the same.
B.
It increases.
C.
Cannot be determined from given information.
D.
It decreases.
Hint
8.
Suppose
x
varies directly with
y
. If
y
increases by a factor of 2, what will happen to
x
?
A.
It will increase by a factor of 4.
B.
It will decrease by a factor of 4.
C.
It will decrease by a factor of 2.
D.
It will increase by a factor of 2.
Hint
9.
Which of the following is a rational function?
A.
B.
C.
D.
Hint
10.
Which of the following types of functions is always continuous on its domain?
A.
square root
B.
greatest integer
C.
inverse variation
D.
rational
Hint
11.
Solve
. Check your solution.
A.
–4
B.
6
C.
–2
D.
6 and –2
Hint
12.
Solve
.
A.
x
>
B.
–
<
x
<
C.
0 <
x
<
D.
x
<
Hint