1.
What is the polynomial function of least degree with integral coefficients that has zeros 2 and 3
i
?
A.
y
=
x
3
- 2
x
2
+ 9
x
- 18
B.
y
=
x
2
- 5
x
- 6
C.
y
=
x
2
+
x
- 6
D.
y
=
x
3
- 2
x
2
- 9
x
+ 18
Hint
2.
Which is an equation of the circle with center at
P
(-2, 5) and radius 2?
A.
(
x
- 2)
2
+ (
y
+ 5)
2
= 2
B.
(
x
- 2)
2
+ (
y
+ 5)
2
= 4
C.
(
x
+ 2)
2
+ (
y
- 5)
2
= 2
D.
(
x
+ 2)
2
+ (
y
- 5)
2
= 4
Hint
3.
Find an equation of the circle that has a diameter with endpoints at
(6, 10) and (-2, 4).
A.
(
x
- 6)
2
+ (
y
- 10)
2
= 100
B.
(
x
+ 2)
2
+ (
y
- 4)
2
= 100
C.
(
x
- 2)
2
+ (
y
- 7)
2
= 25
D.
(
x
- 4)
2
+ (
y
- 3)
2
= 53
Hint
4.
The center of the circle with equation (
x
+ 4)
2
+ (
y
+ 15)
2
= 49 has coordinates ________.
A.
(-4, -15)
B.
(4, 15)
C.
(-4, 15)
D.
(4, -15)
Hint
5.
Find the diameter of the circle with equation (
x
+ 8)
2
+ (
y
- 9)
2
= 121.
A.
121
B.
11
C.
17
D.
22
Hint