1.
Find the coordinates of the vertex of the graph of the equation
y
= -3
x
2
- 12
x
- 5.
A.
(-2, 7)
B.
(-4, -5)
C.
(1, -20)
D.
(2, -41)
Hint
2.
Find the range of a parabola if the vertex is (–5, 3) and the parabola opens upward.
A.
range:
f
(
x
)
3
B.
range:
f
(
x
)
3
C.
range:
f
(
x
)
–5
D.
range:
f
(
x
)
–5
Hint
3.
Find the line of symmetry of the graph of
f
(
x
) =
x
2
– 4
x
+ 5.
A.
x
= –1
B.
x
= 1
C.
x
= –2
D.
x
= 2
Hint
4.
Find the
x
-intercepts of the graph of f(
x
) = –
x
2
+ 4
x
+ 12.
A.
–2, –6
B.
2, 16
C.
–2, 6
D.
–2, 16
Hint
5.
How many solutions does the equation have?
x
2
– 6
x
+ 8 = 2
x
– 3
A.
0
B.
3
C.
1
D.
2
Hint