Unit 2 Test

How can you prove a conjecture is false?

• Counterexample
• Not Possible
• Patterns

• A
• B
• C
• D

Tags

CCSS.HSF.BF.A.2

Complete the conjecture.
The sum of two negative numbers is ___________.

• positive
• negative
• odd
• even

Tags

CCSS.7.EE.A.1

Determine if this conjecture is true. If not, give a counterexample.
The difference of two negative numbers is a negative number.

• true
• false; -11 - (-13)  = 2
• false; -7 - (-5) = 2
• false; -19 - (-17)

Tags

CCSS.6.NS.C.5

Find the next item in the pattern:
-3, 6, -12, 24, ...

• 36
• -36
• 48
• -48

Tags

CCSS.HSF.BF.A.2

Which is a counterexample of: Any number divisible by 2 is divisible by 4.

• 15÷2
• 20÷4
• 16÷4
• 10÷2

Tags

CCSS.6.EE.B.5

What is the next two terms in the sequence?

7, 13, 19, 25

• 31, 37

• 30, 36

• 32, 40

• 31, 38

Tags

CCSS.5.OA.B.3

Find the pattern of the sequence.

5, 10, 20, 40

• Adding 10

• Multiplying by 2

• Adding 5

• Multiplying by 5

Tags

CCSS.3.OA.D.9

Given, "If I have a Siberian Husky, then I have a dog." Identify the converse.

• If I do not have a Siberian Husky, then I do not have a dog.
• If I have a dog, then I have a Siberian Husky.
• If I do not have a dog, then I do not have a Siberian Husky.
• If I do not have a Siberian Husky, then I have a dog. 

Given, "If angles are congruent, then the measures of the angles are equal." Identify the converse.

• If the measures of the angles are equal, then the angles are congruent.
• "If angles are not congruent, then the measures of the angles are not equal."
• If the measures of the angles are not equal, then the angles are not congruent.
• If the angles are not congruent, then the measure of the angles are equal.

Tags

CCSS.HSG.CO.C.9