1.
The vertex of the graph of the equation
y
= -
x
2
+ 6
x
+ 1 is
A.
a minimum
B.
both a maximum and a minimum
C.
a maximum
D.
neither a maximum nor a minimum
Hint
2.
Which is the graph of the equation
y
= 2
x
2
- 1?
A.
B.
C.
D.
Hint
3.
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
4.
Suppose the equation of the axis of symmetry is
x
= 2. What is the
y
-coordinate of the vertex?
A.
2
B.
4
C.
-2
D.
cannot be determined from given information
Hint
5.
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.
vertex
B.
symmetry
C.
minimum
D.
maximum
Hint