1. 5 Minute Check Find. Complete in your notes. 1. 2 + 4(7 – 3) 2. -5 · (-4) + 7 3. 4 – 1(-4) 4. 5 - 5³ + (4 – 2)

2. 5 Minute Check Find. Complete in your notes. 1. 2 + 4(7 – 3)

3. 5 Minute Check Find. Complete in your notes. 1. 2 + 4(7 – 3) 2 + 4(4) 2 + 16 18

4. 5 Minute Check Find. Complete in your notes. 2. -5 · (-4) + 7

5. 5 Minute Check Find. Complete in your notes. 2. -5 · (-4) + 7 20 + 7 27

6. 5 Minute Check Find. Complete in your notes. 3. 4 – 1(-4)

7. 5 Minute Check Find. Complete in your notes. 3. 4 – 1(-4) 4 + 4 8

8. 5 Minute Check Find. Complete in your notes. 4. 5 - 5³ + (4 – 2)

9. 5 Minute Check Find. Complete in your notes. 4. 5 - 5³ + (4 – 2) 5 – 5³ + 2 5 – 125 + 2 120 + 2 122

10. Thursday, May 7 Lesson 7.5.1 Algebraic Expressions

11. Objective: To convert units of measure between the customary and metric systems.

12. Algebraic Expressions A numerical expression is a combination of numbers and operations. For example, 3 x 2 + 4 x 4

13. Algebraic Expressions Algebraic expressions contain at least one variable and at least one operation. e.g. n + 2

14. Algebraic Expressions A term can be a single number or variable or numbers and variables multiplied together and separated by addition or subtraction. e.g. 4x + 4 This expression has 2 terms.

15. Algebraic Expressions A coefficient is the numerical factor of a term that contains a variable. e.g. 4x + 4 In this expression there is only one term that has a variable and the coefficient is 4.

16. Algebraic Expressions A term without a variable is called a constant. e.g. 4x + 4 Constant.

17. Algebraic Expressions Evaluate 2(n + 3) if n = -4. Do this on your own.

18. Algebraic Expressions Evaluate 2(n + 3) if n = -4. 2(-4 + 3) 2(-1) - 2

19. Algebraic Expressions Evaluate 8w – 2v if w = 5 and v = 3. Do this on your own.

20. Algebraic Expressions Evaluate 8w – 2v if w = 5 and v = 3. 8 (5) – 2(3) 40 – 2(3) 40 – 6 34

21. Algebraic Expressions Evaluate 4y³ + 2 if y = 3.

22. Algebraic Expressions Evaluate 4y³ + 2 if y = 3. 4 (3)³ + 2 4(27) + 2 108 + 2 110

23. Algebraic Expressions Evaluate 2c – 4d if c = 8 and d = -5.

24. Algebraic Expressions Evaluate 2c – 4d if c = 8 and d = -5. 2 (8) – 4(-5) 16 – 4(-5) 16 + 20 36

25. Algebraic Expressions Evaluate 2d² + 5d if c = 8 and d = -5. 2 (-5)² + 5(-5) 2 (-5)² -25 2 (25) -25 50 – 25 25

26. Algebraic Expressions Evaluate 3(c + d) if c = 8 and d = -5.

27. Algebraic Expressions Evaluate 3(c + d) if c = 8 and d = -5. 3[ 8 + (-5)] 3(8 - 5) 3(3) 9

28. Algebraic Expressions Evaluate d - c² if c = 8 and d = -5.

29. Algebraic Expressions Evaluate d - c² if c = 8 and d = -5. -5 - 8² -5 – 64 -69

30. Algebraic Expressions Evaluate 3m + 4p if m = 2, n = 6 and p = -4.

31. Algebraic Expressions Evaluate 3m + 4p if m = 2, n = 6 and p = -4. 3(2) + 4(-4) 6+ 4(-4) 6+ (-16) 6 – 16 -10

32. Algebraic Expressions Evaluate n² + 5 if m = 2, n = 6 and p = -4.

33. Algebraic Expressions Evaluate n² + 5 if m = 2, n = 6 and p = -4. 6² + 5 36 + 5 41

34. Algebraic Expressions Evaluate 6p³ if m = 2, n = 6 and p = -4.

35. Algebraic Expressions Evaluate 6p³ if m = 2, n = 6 and p = -4. 6(-4)³ 6(-4)(-4)(-4) -24(-4)(-4) 96(-4) -384

36. Algebraic Expressions Evaluate 2(d + 9) if d = 8, e = 3, f = 4 and g = -1.

37. Algebraic Expressions Evaluate 2(d + 9) if d = 8, e = 3, f = 4 and g = -1. 2(8 + 9) 2(17) 34

38. Algebraic Expressions

42. Evaluate 4f + d if d = 8, e = 3, f = 4 and g = -1.

43. Algebraic Expressions Evaluate 4f + d if d = 8, e = 3, f = 4 and g = -1. 4(4) + 8 16 + 8 24

44. Algebraic Expressions

46. Evaluate 10(e + 7) if d = 8, e = 3, f = 4 and g = -1.

47. Algebraic Expressions Evaluate 10(e + 7) if d = 8, e = 3, f = 4 and g = -1. 10(3 + 7) 10(10) 100

48. Algebraic Expressions

54. Marisa wants to buy a DVD player that costs $150. She already saved $25 and plans to save an additional $10 each week. Write an algebraic expression that represents the total amount of money Marisa has saved after n weeks.

55. Algebraic Expressions Marisa wants to buy a DVD player that costs $150. She already saved $25 and plans to save an additional $10 each week. Write an algebraic expression that represents the total amount of money Marisa has saved after n weeks. $25 + $10n

56. Algebraic Expressions In the past question, will Marisa have saved enough money to buy the $150 DVD player in 11 weeks?

57. Algebraic Expressions In the past question, will Marisa have saved enough money to buy the $150 DVD player in 11 weeks? No. $25 + $10(11) $25 + $110 $135

58. Algebraic Expressions An MP3 player costs $70 and song downloads cost $0.85 each. Write and algebraic expression that represents the cost of the MP3 player and x number of songs.

59. Algebraic Expressions An MP3 player costs $70 and song downloads cost $0.85 each. Write and algebraic expression that represents the cost of the MP3 player and x number of songs. $70 + $0.85 (x)

60. Algebraic Expressions A website charges $0.99 to download a game and a $12.49 membership fee. Write and algebraic expression that represents the total cost to download g games.

61. Algebraic Expressions In the last question, find the total cost if 20 songs are downloaded.

62. Algebraic Expressions In the last question, find the total cost if 20 songs are downloaded. $70 + $0.85 (20) $70 + $17 $87

63. Algebraic Expressions A website charges $0.99 to download a game and a $12.49 membership fee. Write and algebraic expression that represents the total cost to download g games. $12.49 + $0.99g

64. Algebraic Expressions In the last question, find the total cost if 18 games are downloaded.

65. Algebraic Expressions In the last question, find the total cost if 18 games are downloaded. $12.49 + $0.99(18) $12.49 + $17.82 $18.43

66. Algebraic Expressions Agenda Notes No Homework – Homework Practice 7.5.1 Due by the end of the period Circle all answers and show all work Chapter 7.5 Quiz Thursday, May 14