1.
The graph of
y
= -4
x
2
- 1 is _____.
A.
a straight line
B.
a parabola
C.
a circle
D.
None of these is correct.
Hint
2.
Find the graph of
y
=
x
2
.
A.
B.
C.
D.
Hint
3.
Find a quadratic equation for the table.
A.
y
= 5
x
2
– 2
B.
y
= 5
x
2
– 1
C.
y
=
x
2
– 5
D.
y
= 5
x
2
+ 1
Hint
4.
Find the cubic equation.
A.
y
=
x
2
+ 5
B.
y
=
x
(
x
3
+ 1)
C.
y
= 5
x
3
+ 2
x
D.
y
= 3
x
Hint
5.
Solve for
y
in terms of
x
.
xy
= 100
A.
y
=
B.
y
= 100
x
C.
y
=
D.
x
=
Hint
6.
In the relationship
, why is
y
inversely proportional to
x
?
A.
the relationship is undefined at
x
= 0
B.
the product of
xy
is a constant, 8
C.
8 is divided into
y
D.
8 is divided into
x
Hint
7.
Which differences are constant in a cubic equation?
A.
third
B.
first
C.
second
D.
fourth
Hint
8.
What is the relationship between constant second differences and the coefficient of the equation?
A.
the second difference is 2 times the coefficient
B.
the second difference is –2 times the coefficient
C.
the second difference is the same as the coefficient
D.
the second difference is opposite the coefficient
Hint