Unit Test Answers

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1
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()2 + ()2 =

A
+ 3
B
x – 3
C
y + 3
D
y – 3
2
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()2 + ()2 =

A
+ 1
B
– 1
C
y + 1
D
y – 1
3

()2 + ()2 =

A
3
B
9
C
18
D
324
4

()2 + ()2 =

A
x + 1
B
– 1
C
+ 4
D
– 4
5

Which graph represents the equation (x – 1)2 + (y + 1)2 = 9?

A
Option
B
Option
C
Option
D
Option
6

The vertex is .

A
(5, 1)
B
(5, –1)
C
(–5, 1)
D
(–5, –1)
7

Which graph represents the equation ?

Question illustration
A
Option
B
Option
C
Option
D
Option
8

What is the graph that represents the equation 0.4(x + 3) = (y – 6)2?

A
Option
B
Option
C
Option
D
Option
10

()2 + ()2 =

A
y + 1
B
y – 1
C
y + 4
D
y – 4
11

The graph opens .

A
up
B
left
C
right
D
down
12

The directrix is .

A
= –2.9
B
x = –3.1
C
y = 5.9
D
y = 6.1

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