We spent time today going over the topic of vectors one more time with our entry task. We also spent some time taking a look at the 4 different equations that we have been working with so far with coordinate geometry -- distance formula, midpoint formula, circle equation, and slope equation. We reviewed how to use these in various types of problems before getting started on the chapter 13 quiz review.
Chapter 13 quiz tomorrow in class
Assignment: Chapter 13 quiz review
Test 52
1. a. radical 20 b. 1/2 c. (5, 1)
2. a, radical 61 b. -5/6 c. (-2, -7.5)
3. a. 16 b. undefined c. (4, 0)
4. a radical 26 b. -1/5 c, (3.7, 5.2)
5. (x-4)2 + - 5)2 = 121
6. (7, -2); 2
7. perpendicular
8. vector
9. equals
10. (e + g)/2 , (f + h)/2
11. ( 9, 8)
12. (5, -5)
13. radical 50
14. ( -15, 15)
15. graph of vector
16. a. (3, 4) b. graph
17. a. both slopes are -2/7
b. perpendicular slopes, opp. reciprocals, -2/7 and 7/2
18. same midpoint for both AC and OB; (2, 2.5)
19. skip; don't do
Test 51
1. undefined
2. 0
3. negative
4. 1/2
5. 1
6. a. 3/5; b. radical 34
7. a. -1 b. radical 32
8. a. -5/2 b. radical 116
9. a. 0 b. 7
10. x2 + (y + 3)2 = 36
11. (x - u)2 + (y - v)2 = a2
12. a. 2 b. (0, 0)
13. a. 1/2 b. (2, -2.5)
14. graph of circle with radius 3 and center (-2, 1); shaded inside
15. graph of line
16. a. -2/3 b. -2/3 c. 3/2
17. a. -1 b. -1 c. 1
18. radical 52
19. a. all three slopes of AB, BC, and AC are = 1
b. B is between A and C (graph points to verify this)
20. a. all sides are = radical 10
b. slope of GA = 1; slope of RM = -1
slopes are opp. reciprocals so they are perpendicular lines
No comments:
Post a Comment