1.
What is the graph of
?
A.
B.
C.
D.
Hint
2.
If
y
varies jointly as
x
and
z
and
y
= 12 when
x
= 2 and
z
= 3, find
y
when
x
= - 3 and
z
= 0.5.
A.
2
B.
-3
C.
-18
D.
27
Hint
3.
Simplify
A.
B.
C.
D.
Hint
4.
Simplify
A.
B.
C.
1
D.
Hint
5.
Solve
A.
-1
B.
-1, 4
C.
1, 4
D.
0
Hint
6.
Which of the following is the LCM of
.
A.
66
s
4
t
2
q
2
B.
66
s
4
q
2
C.
33
s
4
q
2
D.
33
s
4
t
2
q
2
Hint
7.
What is the LCM of
and
.
A.
r
(
r
– 1)(
r
+ 3)(
r
+ 9)
B.
(
r
– 1)
2
(
r
+ 3)(
r
+ 9)
C.
(
r
– 1)(
r
+ 3)(
r
+ 9)
D.
r
(
r
– 1)
2
(
r
+ 3)(
r
+ 9)
Hint
8.
Which of the following functions has a hole
and
a vertical asymptote?
A.
B.
C.
D.
Hint
9.
Suppose
x
varies directly with
y
. If
y
increases by a factor of 2, what will happen to
x
?
A.
It will decrease by a factor of 2.
B.
It will increase by a factor of 4.
C.
It will decrease by a factor of 4.
D.
It will increase by a factor of 2.
Hint
10.
Which of the following types of functions may have a hole?
A.
square root
B.
rational
C.
absolute value
D.
quadratic
Hint
11.
What type of function is the following?
A.
absolute value
B.
inverse variation
C.
quadratic
D.
square root
Hint
12.
John ran a marathon on a windy day. He ran the first 13 miles into the wind, and the last 13 miles with the wind at his back, and he completed the course in 3 hours. How fast is John in still conditions if the wind speed was 4 miles per hour?
A.
8.7 mph
B.
12.7 mph
C.
–1.6 mph
D.
10.2 mph
Hint