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anonymous

  • one year ago

Determine the type of boundary line and shading for the graph of the inequality -4x - y less than or greater to -2 Choose one answer. a. Dashed line with shading on the side that includes the origin. b. Solid line with shading on the side that does not include the origin. c. Dashed line with shading on the side that does not include the origin. d. Solid line with shading on the side that includes the origin.

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  1. anonymous
    • one year ago
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    so dashed line a or c

  2. anonymous
    • one year ago
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    y ≥ 2 - 4x

  3. anonymous
    • one year ago
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    the orgin is (0,0) ?

  4. butterflydreamer
    • one year ago
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    yesss, origin is always (0,0). :) To check if the side where the origin lies is shaded or not, sub in (0,0) into your equation and see if it is a solution or not.

  5. anonymous
    • one year ago
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    0 ≥ 2- 0 ??????

  6. butterflydreamer
    • one year ago
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    yepp, exactly like that. So y ≥ 2 - 4x, and we plugged in (0,0) ... so 0 ≥ 2 - 0 0 ≥ 2 Is this true or false?

  7. anonymous
    • one year ago
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    false!

  8. butterflydreamer
    • one year ago
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    yeep :) And what happens if it is false? Do we shade the side with the origin or the other side?

  9. anonymous
    • one year ago
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    Other side?

  10. anonymous
    • one year ago
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    so c!

  11. butterflydreamer
    • one year ago
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    yyeeesss! ^_^!

  12. butterflydreamer
    • one year ago
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    WAIT

  13. anonymous
    • one year ago
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    God you make it so easy. I appreciate the help very much!

  14. butterflydreamer
    • one year ago
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    y ≥ 2 - 4x look at your sign :O

  15. anonymous
    • one year ago
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    wot o:

  16. butterflydreamer
    • one year ago
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    ≥ means shaded line!

  17. butterflydreamer
    • one year ago
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    *solid line

  18. anonymous
    • one year ago
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    you are right.

  19. anonymous
    • one year ago
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    so d!

  20. butterflydreamer
    • one year ago
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    xD now i think you're a bit confused.. okay so first we know that the sign is ≥ meaning a SOLID line Then we tested (0,0) and found that it was false when we subbed it in and that hte origin is NOT included so it must be the other side

  21. anonymous
    • one year ago
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    oh i thought d was not including. My bad D:

  22. anonymous
    • one year ago
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    B is d answer :) ?

  23. butterflydreamer
    • one year ago
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    it's aaalll good. Yes "b" is correct :)

  24. anonymous
    • one year ago
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    whew. - Virtual high five -

  25. anonymous
    • one year ago
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    Thank you, Do you know anything about ordered pairs + inequalities?

  26. butterflydreamer
    • one year ago
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    *high five* ^_^! hmmm maybe? I could take a look LOL

  27. anonymous
    • one year ago
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    Which of the following ordered pairs is not a solution to the inequality y less than or greater to -3x - 5? Choose one answer. a. (-4, 0) b. (0, 0) c. (-3, 0) d. (-2, 0)

  28. butterflydreamer
    • one year ago
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    oh this is basically what we did before.. But this time instead of plugging in (0,0)... we plug in the other coordinates.

  29. anonymous
    • one year ago
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    And if it is false then that is the answer?

  30. butterflydreamer
    • one year ago
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    yepp.. but quick question. when you say "less than or greater to" which symbol are you referring to? like... \[\le \ge > < ? \]

  31. anonymous
    • one year ago
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    http://gyazo.com/72e8703d46478d64907d0d6baa4c46a0

  32. anonymous
    • one year ago
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    i just copy and paste this. thats how it came out haha

  33. butterflydreamer
    • one year ago
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    ohh okaaayy! that sign is called less than or equal to LOL

  34. anonymous
    • one year ago
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    I know i looked at it after and was wondering how to write what i copied and pasted down on paper.

  35. anonymous
    • one year ago
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    Like copy+paste pls :c

  36. butterflydreamer
    • one year ago
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    haha i read it and just stared at it like O.O ?? anywaaays, have you solved the problem yet? :)

  37. anonymous
    • one year ago
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    Slowly am o:

  38. butterflydreamer
    • one year ago
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    okey dokeyyy

  39. anonymous
    • one year ago
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    b?

  40. butterflydreamer
    • one year ago
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    that's corrrect! :D

  41. anonymous
    • one year ago
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    yey :3

  42. butterflydreamer
    • one year ago
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    LOL see, it isn't as hard as you think :) Good job

  43. anonymous
    • one year ago
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    Which of the following ordered pairs is a solution to the inequality y less than or greater to -2x + 8? Choose one answer. a. (0, -4) b. (5, -1) c. (7, 0) d. (9, 1)

  44. anonymous
    • one year ago
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    You are great help <3

  45. anonymous
    • one year ago
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    This is the last one

  46. anonymous
    • one year ago
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    y ≤ -2x + 8

  47. anonymous
    • one year ago
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    so just plug it all in

  48. butterflydreamer
    • one year ago
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    yyeep

  49. anonymous
    • one year ago
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    -1 ≤ -10 + 8 -4 ≤ 8 0 ≤ -14 + 8 1 ≤ -18 + 8

  50. anonymous
    • one year ago
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    those are the 4 i got

  51. anonymous
    • one year ago
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    wait i just realised that it is b.......

  52. anonymous
    • one year ago
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    jesus

  53. anonymous
    • one year ago
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    @butterflydreamer

  54. butterflydreamer
    • one year ago
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    remember we're trying to find one which is TRUE this time because we want a point which is a solution. so, y ≤ -2x + 8 a. (0, -4) -4 ≤ 0 + 8 -4≤8 b. (5, -1) -1 ≤ -2(5) + 8 -1≤ -10 + 8 -1 ≤ -2 c. (7, 0) 0≤ -2(7) + 8 0 ≤ -14 + 8 0 ≤ -6 d. (9, 1) 1≤ -2(9) + 8 1 ≤ -18 + 8 1 ≤ -10 Which one is true? This will be your solution!

  55. anonymous
    • one year ago
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    b!

  56. butterflydreamer
    • one year ago
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    is -1 less than or equal to -2?

  57. anonymous
    • one year ago
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    a my bad. i mixed my questions up on my paper haha

  58. anonymous
    • one year ago
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    i wrote them in order and mixed up a and b

  59. butterflydreamer
    • one year ago
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    yeesss a is coorrectt

  60. anonymous
    • one year ago
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    That is all i had left for my review thank you !

  61. butterflydreamer
    • one year ago
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    wooohhoooo~ No problem ^_^!

  62. anonymous
    • one year ago
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    One more question though, do you play any video games o:?

  63. butterflydreamer
    • one year ago
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    hahaha no i don't xD

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