1.
Which is the quadratic term in the function
f
(
x
) = 3
x
2
+ 6
x
- 4?
A.
3
B.
3
x
2
+ 6
x
- 4
C.
3
x
2
D.
x
2
Hint
2.
Find the vertex of the graph of
f
(
x
) =
x
2
+ 4
x
- 5.
A.
(2, 7)
B.
(-2, -9)
C.
(-2, 9)
D.
(0, -5)
Hint
3.
What is the
y
-intercept of the function
y
= 2
x
2
+ 1
A.
1
B.
0
C.
3
D.
none
Hint
4.
If the vertex of a parabola is (3, -4), what is its axis of symmetry?
A.
x
= 3
B.
y
= 3
C.
x
= -4
D.
y
= -4
Hint
5.
Which of the following graphs best represents the function
y
= –
x
2
+ 7
x
+ 8?
A.
B.
C.
D.
Hint