1.
Which way does the graph of
y
= –2
x
2
open?
A.
right
B.
up
C.
down
D.
left
Hint
2.
How many diagonals does a 25-sided polygon have?
A.
300
B.
25
C.
275
D.
550
Hint
3.
Which equation is in the same family as
y
=
x
2
?
A.
y
=
x
2
– 3
B.
y
= 2
x
– 3
C.
y
= 2
x
2
– 3
D.
y
=
x
3
– 3
Hint
4.
What is the new equation if the graph
y
= 2
x
3
– 6
x
2
is moved down 1 unit?
A.
y
= 2
x
3
– 6
x
2
– 1
B.
y
=
x
3
– 6
x
2
C.
y
= 2
x
3
– 5
x
2
D.
y
= 2
x
3
– 6
x
2
+ 1
Hint
5.
In the relationship
, why is
y
inversely proportional to
x
?
A.
8 is divided into
y
B.
the product of
xy
is a constant, 8
C.
8 is divided into
x
D.
the relationship is undefined at
x
= 0
Hint
6.
How does
a
affect graphs of equations in the form of
?
A.
negative values of
a
move the graph to the left, positive values move it to the right
B.
positive values of
a
move the graph to the left, negative values move it to the right
C.
a
affects the length of the graph
D.
a
affects the width of the graph
Hint
7.
Which differences are constant in a cubic equation?
A.
third
B.
second
C.
fourth
D.
first
Hint
8.
What is the relationship between constant second differences and the coefficient of the equation?
A.
the second difference is opposite the coefficient
B.
the second difference is the same as the coefficient
C.
the second difference is 2 times the coefficient
D.
the second difference is –2 times the coefficient
Hint