## wintersuntime one year ago Can someone be nice enough to help me please ?

1. anonymous

why not?

2. anonymous

3. wintersuntime

I'll post the question

4. wintersuntime
5. wintersuntime

It's page 8 3.2

6. wintersuntime

It's only this question -> Set Topic: Evaluating Equations Evaluate the following equations when x = { 1, 2, 3, 4, 5 }. Organize your inputs and outputs into a table of values for each equation. Let x be the input and y be the output.

7. anonymous

is the the $$4^x$$ one?

8. wintersuntime

yes with the table

9. DanJS

ha, thanks for th ebook

10. wintersuntime

I have to answer those question 5. 6. 7. 8.

11. anonymous

ok in the first column put $$1, 2, 3, 4, 5$$ in the second put $$4, 4^2, 4^3, 4^4, 4^5$$ or rather what you get when you compute those numbers

12. anonymous

|dw:1441160033833:dw|

13. anonymous

make yours look neater

14. wintersuntime

That for question 5. right so its multipliying right

15. anonymous

it is raising to powers, not multiplying or "multiplying by itself x times"

16. wintersuntime

oh

17. anonymous

for example $$4^3=4\times 4\times 4=64$$ not $$12$$

18. wintersuntime

Can you help me with the other question please

19. wintersuntime

@satellite73

20. anonymous

what is the quesiton?

21. anonymous

you mean the next one $$(-3)^x$$?

22. wintersuntime

yes

23. anonymous

they are all the same idea replace x by 1, 2, 3, 4, 5 and see what you get

24. wintersuntime

|dw:1441161271918:dw|

25. anonymous

$$x=1,y=(3)^1=-3$$ $$x=2,y=(-3)^2=9$$ etc

26. wintersuntime

like that ?

27. anonymous

yup!

28. wintersuntime

yay

29. anonymous

yay indeed!

30. wintersuntime

for the next one is it the same

31. anonymous

for the next one it is not the same

32. wintersuntime

but they are all negative

33. anonymous

for the next one all the answers are negative yeah, what you said

34. anonymous

the last one is the easiest

35. wintersuntime

and for the next one is it the same idea

36. anonymous

10,100,1000,10000,10,000

37. wintersuntime

that was easy

38. anonymous

now i have a question what is that a picture of?

39. wintersuntime

what picture ?

40. wintersuntime

My profile pic

41. anonymous

yeah that one

42. wintersuntime

It's a band from of mice and men

43. wintersuntime

Of Mice & Men - Second and Sebring (Official Music Video)

44. anonymous

ooh

45. wintersuntime
46. wintersuntime

you should listen to them they are really good

47. wintersuntime

hey I'm sorry to bother you but can you help me on 6 question if you can ?

48. anonymous

ok

49. anonymous

sure

50. anonymous

if i can

51. wintersuntime

okay

52. wintersuntime
53. wintersuntime

It's on page 9

54. anonymous

on page 9 i see a bunch of equations, but no number 6

55. wintersuntime

yes its the equations

56. anonymous

$3 x − 1 = 2(x + 3)$

57. anonymous

like that one?

58. wintersuntime

yes

59. anonymous

distribute first

60. anonymous

$3x-1=2x+6$

61. anonymous

subtract $$2x$$ from both sides $x-1=6$

62. anonymous

then add 1 $x=7$

63. anonymous

you got that?

64. wintersuntime

kind of confusing

65. wintersuntime

|dw:1441162041205:dw|

66. anonymous

there were no parentheses in the one on the left

67. anonymous

$3x-1=2(x+3)\\ 2x-1=2x+6\\ x-1=6\\ x=7$

68. anonymous

69. anonymous

$3x-1=2(x+3)\\ 3x-1=2x+6\\ x-1=6\\ x=7$

70. wintersuntime

oh

71. anonymous

wanna try $7 x + 20 = x + 5$

72. wintersuntime

I think i get know

73. wintersuntime

okay

74. anonymous

OOH DAMN!

75. anonymous

i copied and pasted, but it did not work correctly lets start again

76. wintersuntime

oh okay

77. anonymous

the first one DID have parentheses $3(x-1)=2(x+3)$

78. anonymous

steps are the same, answer is different

79. anonymous

distribute on both sides get $3x-3=2x+6$

80. anonymous

subtract $$2x$$ to get $x-3=6$then add 3 gives $x=9$

81. wintersuntime

oh okay I think i get it I'll try to do the next one

82. wintersuntime

I hope i get it right

83. anonymous

ok write the steps (very similar to the last one )

84. wintersuntime

|dw:1441162804391:dw|

85. anonymous

yes

86. wintersuntime

then x-5

87. anonymous

not sure what you mean you have $7x+140=x+5$ right? you want the x on one side of the equal sing, subtract x from both sides

88. anonymous

*sign

89. wintersuntime

x= -22.5

90. anonymous

yup

91. wintersuntime

I'll try to do the next one

92. wintersuntime

Is it n= 3.5

93. anonymous

yes

94. wintersuntime

I don't get the next one

95. anonymous

don't be scared of the fraction, go ahead and distribute first

96. wintersuntime

For the last one I got z= 2

97. anonymous

got that right

98. wintersuntime

okay