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goldyyy

  • 2 years ago

anybody wanna help?

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  1. goldyyy
    • 2 years ago
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  2. goldyyy
    • 2 years ago
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    ?

  3. Heyy_Girl_Heyy
    • 2 years ago
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    The answer is D. I know this because all you have to do is use a calculator, and fill in the x and y values in the equation from your answers, and see which one adds upp..(:

  4. tanvirms
    • 2 years ago
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    in an ordered pair, the first number is the value of x and the second one is y, so, just put the value of x and y and see which gets u 5 ..... *sshhh* its the last one :P

  5. goldyyy
    • 2 years ago
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    ok thanks! i have more questions if you want?! :)

  6. Heyy_Girl_Heyy
    • 2 years ago
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    You should totally give me best response and I will help you(:

  7. tanvirms
    • 2 years ago
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    @Heyy_Girl_Heyy errmm...u might wanna check your calculator again, its not D.

  8. goldyyy
    • 2 years ago
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    wait so is it the last one? @Heyy_Girl_Heyy @tanvirms

  9. Heyy_Girl_Heyy
    • 2 years ago
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    Umm, yeah. It kinda is

  10. goldyyy
    • 2 years ago
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    D?

  11. tanvirms
    • 2 years ago
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    yes.... 2.(3) + (-1) = 5 or, 6-1=5 or, 5=5

  12. Heyy_Girl_Heyy
    • 2 years ago
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    Yes. Fill in the numbers and see what you get.

  13. Heyy_Girl_Heyy
    • 2 years ago
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    So @tanvirms , How was I wrong?

  14. tanvirms
    • 2 years ago
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    @Heyy_Girl_Heyy its the last one, E :) put the values yourself and check.

  15. Heyy_Girl_Heyy
    • 2 years ago
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    Yeah, that's what I said.

  16. goldyyy
    • 2 years ago
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    YOU GUYS ARE CONFUSING ME lol

  17. Heyy_Girl_Heyy
    • 2 years ago
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    The answer is the last equation

  18. tanvirms
    • 2 years ago
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    @Heyy_Girl_Heyy hey im totally sorry :P i messed it up with someone else's question with 5 options....it has 4...sorry!!!!

  19. AngelicDragon
    • 2 years ago
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    OMG peoples. It's (3,-1)

  20. Heyy_Girl_Heyy
    • 2 years ago
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    Lol, you're okay. I understand..

  21. goldyyy
    • 2 years ago
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    ahahha anyways here's the 2nd question

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  22. Heyy_Girl_Heyy
    • 2 years ago
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    (2,-2)

  23. AngelicDragon
    • 2 years ago
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    2,-2

  24. Heyy_Girl_Heyy
    • 2 years ago
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    I got this.

  25. AngelicDragon
    • 2 years ago
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    LOL!! I sent when yours came in

  26. tanvirms
    • 2 years ago
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    @goldyyy seriously?? just count!!! 2 on the right means 2, and two down means -2, so its (2,-2)

  27. AngelicDragon
    • 2 years ago
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    LOL!!!

  28. goldyyy
    • 2 years ago
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    number 3................ and @tanvirms i wasn't looking at the questions i'm just posting them :P

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  29. Heyy_Girl_Heyy
    • 2 years ago
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    @goldyyy , do you go to Connections Axademy?

  30. tanvirms
    • 2 years ago
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    @goldyyy :P if you look at em, im sure you wont find any that u cant solve.

  31. goldyyy
    • 2 years ago
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    i go to ohio virtual academy @Heyy_Girl_Heyy

  32. AngelicDragon
    • 2 years ago
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    I'm gonna agree with @tanvirms on this at least look at em first

  33. Heyy_Girl_Heyy
    • 2 years ago
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    It is just like the other problem, figgure it out/

  34. Heyy_Girl_Heyy
    • 2 years ago
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    Just fill in the answer choices into the x and y values. See which one adds up.

  35. goldyyy
    • 2 years ago
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    sorryyyy wasn't looking at them :/ but i'll look at 'em now and i'll post the ones i don't know

  36. Heyy_Girl_Heyy
    • 2 years ago
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    Okay.

  37. goldyyy
    • 2 years ago
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    well idk this one cuz i don't get slopes :/

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  38. Heyy_Girl_Heyy
    • 2 years ago
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    I can explain slopes if you want me to

  39. Heyy_Girl_Heyy
    • 2 years ago
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    I know the answer, but I want to make sure you UNDERSTAND the material.

  40. goldyyy
    • 2 years ago
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    okay

  41. tanvirms
    • 2 years ago
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    it ascends from left to right, which means it has a positive slope...with this info, u can eliminate 2 answer choices :) (elimination is a wonderful strategy for SAT)

  42. AngelicDragon
    • 2 years ago
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    rise/run from one point to the next: how many units up (if its down its negative) over how many units right (left means negative)

  43. Heyy_Girl_Heyy
    • 2 years ago
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    Okay, so when you are doing slope, you use rise over run. Rise is the up or down along the grid, and run is side to side across the grid. So you will measure you r rise )Up or down motion) as opposed to your run(Side to side motion) count how many there are and thats your answer

  44. Heyy_Girl_Heyy
    • 2 years ago
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    O meant how ever many units up or down and across from each point is your answer.

  45. goldyyy
    • 2 years ago
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    is it 4?

  46. AngelicDragon
    • 2 years ago
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    equation for slope: \[m = \frac{ y_{2}–y_{1} }{x_{2}–x_{1}}\]

  47. Heyy_Girl_Heyy
    • 2 years ago
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    No, it will be in the form of a frac tion

  48. goldyyy
    • 2 years ago
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    so is it always in fraction form?

  49. Heyy_Girl_Heyy
    • 2 years ago
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    Most times.

  50. goldyyy
    • 2 years ago
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    1/4?

  51. Heyy_Girl_Heyy
    • 2 years ago
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    Yeah.!

  52. tanvirms
    • 2 years ago
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    it doesnt need to be fraction...it can be any number.

  53. Heyy_Girl_Heyy
    • 2 years ago
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    Well, in this case it would be a fraction, correct?

  54. tanvirms
    • 2 years ago
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    yup...basically, when the run is greater than the rise, it has a chance to be a fraction.

  55. goldyyy
    • 2 years ago
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    and for number 3, i tried all the answers but they all equaled 24 or -24 and 26 or -26

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  56. goldyyy
    • 2 years ago
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    yes

  57. Heyy_Girl_Heyy
    • 2 years ago
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    hmm, the same thing happened with me. I am not sure.

  58. tanvirms
    • 2 years ago
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    intercept is the point where the straight line cuts the axis...so, x intercept means that value of x for which y=0, and y intercept means that value of y for which x=0....try solving

  59. tanvirms
    • 2 years ago
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    wait i'll show u...

  60. Heyy_Girl_Heyy
    • 2 years ago
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    No, she is tal;king about #3 @tanvirms

  61. tanvirms
    • 2 years ago
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    that's what im talking about too

  62. goldyyy
    • 2 years ago
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    would it be B because the answer is -12 and B's answer is -24 which is double?

  63. tanvirms
    • 2 years ago
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    2x-3y=-12, or, -3y=-2x-12 pr. 3y=2x+12 or, y=(2x+12)/3 now, find that value of x for which y would be 0. in this case, it is -6.... (-12+12)/3=0 similaryl, 2x=3y-12 or, x=(3y-12)/2 for y=4, x=0....so the correct answer is B,

  64. goldyyy
    • 2 years ago
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    yes so i was right! what about these?

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  65. goldyyy
    • 2 years ago
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    last one got cut off so here

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  66. tanvirms
    • 2 years ago
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    for the first one, do that same as @Heyy_Girl_Heyy taught u a while ago... for the second one, all u have to do is get the equation in y=mx+c form so, 4x+9y=36 or, 9y=-4x+36 or, y=-4/9.x + 36/9 or, y=-4/9.x+4

  67. goldyyy
    • 2 years ago
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    thanks for helping! and can you please explain/answer these aswell?

  68. goldyyy
    • 2 years ago
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  69. goldyyy
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  70. goldyyy
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  71. goldyyy
    • 2 years ago
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  72. goldyyy
    • 2 years ago
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    explain and answer them please?

  73. goldyyy
    • 2 years ago
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    @Heyy_Girl_Heyy @tanvirms @AngelicDragon ?? :D

  74. Heyy_Girl_Heyy
    • 2 years ago
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    I am kinda busy right now.

  75. AngelicDragon
    • 2 years ago
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    7. is b

  76. AngelicDragon
    • 2 years ago
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    sorry i was busy a second ago

  77. goldyyy
    • 2 years ago
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    ohh ok @AngelicDragon thanks

  78. AngelicDragon
    • 2 years ago
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    You know if you have a graphing utility on your computer that can be a lot of help to you with a lot of these

  79. goldyyy
    • 2 years ago
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    i don't have one :/ i have to do something real quick so i'll be back in like 20 minutes

  80. AngelicDragon
    • 2 years ago
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    that's a good way to get them done fast in fact that's what I do

  81. goldyyy
    • 2 years ago
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    yeah :)

  82. AngelicDragon
    • 2 years ago
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    you can use Geogebra it's an online graphing thing

  83. goldyyy
    • 2 years ago
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    brb in 20 mins! :)

  84. goldyyy
    • 2 years ago
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    back! @AngelicDragon

  85. tanvirms
    • 2 years ago
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    Q.9---what is the relationship between these two lines: 3x+6y=8 y=2x-8 as i said, try to transform the equation into y=mx+b form, the second one is already done...lets go with the first one. 3x+6y=8 or, 6y=-3x+8 or, y= -3/6.x + 8/6 or, y= -1/2.x + 4/3 what u wanna look at now is the part with x (the 'm' part in y=mx+b) and in this case it is -1/2 (u have to take it with the sign)....it is the 'slope' in case of y=2x-8 slope, m is 2, right? whats the relationship between 2 and -1/2?? -1/2 is the reciprocal of 2 with the opposite sign (u know what a reciprocal fraction is, right?) when one straight line has a reciprocal slope with the opposite sign in respect to another straight line, they are perpendicular to each other. i hope this explains.

  86. tanvirms
    • 2 years ago
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    Q. which has a slope of 5 and y intercept of -3? all of these equations are in intercept form. ( y=mx+b as i said) m is the slope b is the y intercept so what u are looking for is an equation that has m=5, b=-3 look for it!!

  87. tanvirms
    • 2 years ago
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    Q. which one is graph of inequality y<2x+3 the shaded part is the part that denotes the inequality, i guess u already know that. if there's a straight line between the shaded part and the white part, there should be a = sign in the equation....you dont see any '=' in the equation, do you? in that case, you can just eliminate B. now, the best way is to take a (x,y) pair. and the easiest to work with is the (0.0) pair. substitute the values of x and y here. 0<2.0+3 or, 0<3 which is totally true (0,0) lies in the shaded part of C, so C is the answer. sometimes, you might also have to check some other pairs (1,1) or something else too, just to be sure. if you'r wondering whether A is correct or not, take a point that lies in the shaded part, lets say it is (-2,4) (its in the shaded part, check out) 4<2.(-2)+3 or, 4<-4+3 or, 4<-1 apparently, 4 can never be less than -1. so there you go...its not A, not B...its C.

  88. tanvirms
    • 2 years ago
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    i believe we already worked on 5 and 6 a while ago...check. Q.7---a line that passes through (-2,1) and has a slope of 5. if my earlier explanations were clear enough, i believe you already know that only option A and B has a slope of 3 now, check them with the pair (-2,1). you wanna put x=-2 and y=1 and see if its true. for A, (1+1)=3(-2+2) or, 2=0 TOTALLY WRONG! for B, (1-1)=3(-2+2) or 0=0 there you go!! Q.8: what is the slope of the line parallel to 2x-3y=6 find the slope first. -3y=-2x+6 or, 3y=2x-6 or, y=2/3.x-2 so, the slope is 2/3, right?? remember what i told you a while ago? perpendicular lines have a reciprocal and opposite signed slope..... in case of parallel lines, they have the same slope. so, the answer is 2/3..

  89. tanvirms
    • 2 years ago
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    finally, i'm sorry for the late replies. i'm from Bangladesh and our time zones are totally different. it was like 2 AM in the morning and i went to bed (not to mention, i got struck by AlterBridge too. listened to them over and over again till 4 xD ).

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