1.
Which is the quadratic term in the function
f
(
x
) = 3
x
2
+ 6
x
- 4?
A.
3
x
2
+ 6
x
- 4
B.
x
2
C.
3
D.
3
x
2
Hint
2.
What is the
y
-intercept of the function
y
= 2
x
2
+ 1
A.
3
B.
none
C.
1
D.
0
Hint
3.
If the vertex of a parabola is (3, -4), what is its axis of symmetry?
A.
y
= -4
B.
x
= 3
C.
y
= 3
D.
x
= -4
Hint
4.
In the equation
y
=
x
2
– 5, what is the axis of symmetry, and what is the minimum?
A.
x
= –5, min = 0
B.
x
= 0, min =
C.
x
=
, min = 0
D.
x
= 0, min = –5
Hint
5.
Which of the following graphs best represents the function
y
= –
x
2
+ 7
x
+ 8?
A.
B.
C.
D.
Hint