1.
Find the equation of the axis of symmetry of the graph of
y
= 2
x
2
- 8
x
+ 5.
A.
x
= -4
B.
x
= 2
C.
x
= 4
D.
x
= -2
Hint
2.
Find the coordinates of the vertex of the graph of the equation
y
= -3
x
2
- 12
x
- 5.
A.
(2, -41)
B.
(1, -20)
C.
(-2, 7)
D.
(-4, -5)
Hint
3.
The vertex of the graph of the equation
y
= -
x
2
+ 6
x
+ 1 is
A.
a minimum
B.
a maximum
C.
both a maximum and a minimum
D.
neither a maximum nor a minimum
Hint
4.
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
5.
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