

1. 
Draw the next figure in the pattern. 





A. 

B. 



C. 

D. 



Hint 


2. 
What is used to show that an assumption is false? 


A. 
counterexample 
B. 
pattern 


C. 
inductive reasoning 
D. 
conjecture 


Hint 


3. 
Based upon the table below, Mari concluded that when one of two addends is negative, the sum is always negative. Find a counterexample for her conjecture. 





A. 
5 + (5) 
B. 
18 + (10) 


C. 
13 + 5 
D. 
8 + 7 


Hint 


4. 
Find the next three terms of the sequence. 2, 5, 4, 7, 6,….. 


A. 
9, 12, 15 
B. 
8, 10, 12 


C. 
9, 8, 11 
D. 
10, 13,12 


Hint 


5. 
One possible counterexample for the statement ''All fruits taste sweet'' is ________. 


A. 
Watermelons 
B. 
Oranges 


C. 
Lemons 
D. 
Plums 


Hint 


