1. MID CHAPTER 2 QUIZ REVIEW SECTIONS 2.1, 1.4-5, 2.5

2. QUESTION #1 Make a conjecture about the sum of any two negative integers.

3. ANSWER TO #2 The sum of any 2 negative integers is always negative. i.e. (-3) + (-2) = -5 (-1) + (-6) = -7 (-4) + (-9) = -13

4. QUESTION #2 Write the next number in the pattern. Describe the pattern for finding the next number. 1, 8, 27, 64, 125, …

5. ANSWER TO #2 216 The cube of the next integer.

6. QUESTION #3 Determine whether the statement is true. If so, write “True”, if not write “False” and provide a counter-example. All prime numbers are odd.

7. ANSWER TO #3 False. 2 is a prime number that is even.

8. QUESTION #4 Which postulate is being represented in the diagram?

9. ANSWER TO #4 If there is a plane, then it contains at least 3 non- collinear points.

10. QUESTION #5 Complete the postulate by filling in the blank. If 2 planes intersect, then their intersection is always a _______.

11. ANSWER TO #5 Line

12. QUESTION #7 Find

13. ANSWER TO #7

14. QUESTION #8 Find

15. ANSWER TO #8

16. QUESTION #9

17. ANSWER TO #9

18. QUESTION #10 a)b)

19. ANSWER TO #10 a)Adjacent angles b)Vertical angles; supplementary angles

20. QUESTION #11 Name: a)2 vertical angles b)2 complementary angles c)2 supplementary angles

21. ANSWER TO #11 a) b) c)