1.
Which function has a graph that opens upward?
A.
f
(
x
) = -
x
2
+ 3
x
-12
B.
f
(
x
) = -
x
2
+ 4
x
+ 7
C.
f
(
x
) = 2
x
2
- 5
x
- 2
D.
f
(
x
) = -5
x
2
-6
x
-3
Hint
2.
Find an equation for the parabola shown in the graph.
A.
y
=
(
x
+ 2)
2
- 4
B.
y
=
(
x
- 2)
2
- 4
C.
y
= (
x
+ 2)
2
- 4
D.
y
= (
x
- 2)
2
+ 4
Hint
3.
If the graph of
y
=
x
2
is shifted 4 units to the right, and 2 units down, what is the equation of the new graph?
A.
B.
C.
D.
Hint
4.
What is the equation of the parabola whose vertex is at (-3, 1) and passes through the point (-2, 4)?
A.
B.
C.
D.
Hint
5.
Find the axis of symmetry of the following function:
A.
x
= –7
B.
x
=
C.
x
= 7
D.
x
=
Hint