1.
Find the equation of the axis of symmetry of the graph of
y
= 2
x
2
- 8
x
+ 5.
A.
x
= 2
B.
x
= -4
C.
x
= -2
D.
x
= 4
Hint
2.
What is the equation of the graph shown?
A.
y
= -
x
2
- 2
x
- 1
B.
y
=
x
2
- 2
x
+ 1
C.
y
=
x
2
+ 2
x
+ 1
D.
y
= -
x
2
+2
x
- 1
Hint
3.
What is the equation of the graph shown?
A.
f
(
x
) = 2
x
2
- 2
x
+ 1
B.
f
(
x
) = -2
x
2
+ 2
x
- 1
C.
f
(
x
) = 2
x
2
+ 2
x
+ 1
D.
f
(
x
) = -2
x
2
+ 2
x
+ 1
Hint
4.
Suppose the equation of the axis of symmetry is
x
= 2. What is the
y
-coordinate of the vertex?
A.
4
B.
cannot be determined from given information
C.
2
D.
-2
Hint
5.
Find the vertex of
y
= –2
x
2
+ 4
x
– 3, and tell whether it is a maximum or minimum.
A.
(1, 3), minimum
B.
(–1, –9), maximum
C.
(–1, 1), maximum
D.
(1, –1), maximum
Hint