1. 3.7B HW Answers

2. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 7.5 5 20 12 12,000 30 decrease 45 decrease 33% 300 B

3. 11. 12. 13. 14. 15. 16. 17. 18. 19. C x = -12 x = 0 p = 5 -30 -6 9, -9 -17 15

4. 20. reciprocal associative dividend divisor quotient distribute multiplicative identity factor product

5. Scoring Your Homework Count how many problems you missed or didn’t do 0-1 missed = 10 2-3 missed = 9 4-5 missed = 8 6-8 missed = 7 9-10 missed = 6 11-13 missed = 5 14-15 missed = 4 16-17 missed = 3 18-19 missed = 2 20-22 missed = 1 23-27 missed = 0

6. Daily Check Only grade one per group No talking to other groups No copying!

7. 1. You bought a sweater on sale for $15. The original price of the sweater was $40. What percent of the original price was the sales price?

8. 2. On a test of 80 items, a student got 60 correct. What percent were correct?

9. 3. You have filled 15% of a 30-gallon aquarium with water. How much water have you put into the aquarium?

10. 4. Find the discount price of a tent with a price of $80 and a discount of 15%

11. 5. A car salesperson had sales of $85,000 one week and a 15% decrease in sales the next week. What was the amount of sales the second week?

12. Resource Managers Put the teams homework and daily checks in the folder on the right side Turn folders in

13. Table of Contents Topic Page #... 3.5/3.6 Ratios and Proportions41 3.7 Percents43 3.7B Solve Percent Problems45 4.1 Plot Points47

14. #47 4.1 Plot Points

15. Coordinate Plane: Where two number lines cross

16. -5 -4 -3 -2 -1 0 1 2 3 4 5 5 4 3 2 1 0 -2 -3 -4 -5

17. X-axis: The # line that is horizontal and represents all x #s Y-axis: The # line that is vertical and represents all y #s

18. -5 -4 -3 -2 -1 0 1 2 3 4 5 5 4 3 2 1 0 -2 -3 -4 -5 x y

19. Quadrants: The 4 regions of the coordinate plane, named counter-clockwise

20. -5 -4 -3 -2 -1 0 1 2 3 4 5 5 4 3 2 1 0 -2 -3 -4 -5 x y Quadrant I Quadrant II Quadrant III Quadrant IV

21. Ordered Pair: First number is the x-coordinate and the second number is the y- coordinate. (x, y) x is domain, y is range First you walk, and then you fly

22. -5 -4 -3 -2 -1 0 1 2 3 4 5 5 4 3 2 1 0 -2 -3 -4 -5 x y Quadrant I Quadrant II Quadrant III Quadrant IV (3, 2) (-4, 5) (-5, -2) (1, -3) (-3, 0) (0, 2)

23. Origin: Where the two axis meet (0, 0)

24. -5 -4 -3 -2 -1 0 1 2 3 4 5 5 4 3 2 1 0 -2 -3 -4 -5 x y Quadrant I Quadrant II Quadrant III Quadrant IV (3, 2) (-4, 5) (-5, -2) (1, -3) (-3, 0) (2, 0) origin

25. Ex: Graph y = 2x – 1 with the domain of -1, 0, 1, 2, and 3 x y = 2x – 1 y(x,y) 0 1 2 3 y = 2(-1) – 1-3 y = 2(0) – 1 y = 2(1) – 11 y = 2(2) – 13 y = 2(3) – 15 (-1, -3) (0, -1) (1, 1) (2, 3) (3, 5)

26. -5 -4 -3 -2 -1 0 1 2 3 4 5 5 4 3 2 1 0 -2 -3 -4 -5 x y

27. Ex: Graph y = x 2 – 1 with the domain of –2, -1, 0, 1, 2 x y = x 2 – 1 y(x,y) -2 0 1 2 y = (-2) 2 – 13 y = (-1) 2 – 10 y = (0) 2 – 1 y = (1) 2 – 10 y = (2) 2 – 13 (-2, 3) (-1, 0) (0, -1) (1, 0) (2, 3)

28. -5 -4 -3 -2 -1 0 1 2 3 4 5 5 4 3 2 1 0 -2 -3 -4 -5 x y