We wrapped up chapter 13 today by reviewing another coordinate geometry proof. We also reviewed the various formulas and line equations that are necessary for the test tomorrow, as well as working through a couple of review problems involving line conversions. The students spent the rest of the period working on their review assignment.
Chapter 13 Test tomorrow
Assignment: Chapter 13 review sheet
Review Sheet Answers
1. point on graph
2. point on graph
3. point on graph
4. point on graph
5. quadrant III
6. x- axis
7. 5 radical 2
8. (x + 2)2 + y2 = 49
9. undefined
10. (-5, -12)
11. 13
12. opp. sides are congruent and parallel; vertical sides; slope = undefined, length = 7
13. 3 radical 5
14. (-1.5, 1)
15. (-6, -8)
16. 2
17. a. (-4, -1) b. 10
18. (x - 1)2 + (y - 5)2 = 1
19. (a + 1, b)
20. a. 3/5 b. -5/3
21. (4, 17)
22. y = -5/8 x - 39/4
23. y = 4x - 3
24. y = -5x + 2
25. (1, 3)
26. a. ( b, radical a2 + b2) b. (a + b, radical a2 + b2)
27. triangle coordinates: (0, 0), (2a, 0), (a, b)
find the midpoints and then determine the length of the midsegment. Find the length of the base and compare it to the length of the midsegment. Use the distance formula.
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