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.
Which is the graph of the equation
y
= 2
x
2
- 1?
A.
B.
C.
D.
Hint
3.
Suppose the equation of the axis of symmetry is
x
= 2. What is the
y
-coordinate of the vertex?
A.
-2
B.
cannot be determined from given information
C.
4
D.
2
Hint
4.
The property of a parabola that allows it to be folded in half so that each half matches the other exactly is called what?
A.
maximum
B.
vertex
C.
minimum
D.
symmetry
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, –1), maximum
C.
(–1, –9), maximum
D.
(–1, 1), maximum
Hint