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kristinak Group Title

A quadratic equation is shown below: x2 - 8x + 13 = 0 Which of the following is the first correct step to write the above equation in the form (x - p)2 = q, where p and q are integers? Subtract 5 from both sides of the equation Subtract 3 from both sides of the equation Add 5 to both sides of the equation Add 3 to both sides of the equation

  • 3 months ago
  • 3 months ago

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  1. myininaya Group Title
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    do you know how to complete the square? let's practice do you think x^2-2x+1 can be written as a square?

    • 3 months ago
  2. kristinak Group Title
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    yes

    • 3 months ago
  3. kristinak Group Title
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    @myininaya

    • 3 months ago
  4. kristinak Group Title
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    i was thnking it was D?

    • 3 months ago
  5. myininaya Group Title
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    can you write is as a square for me?

    • 3 months ago
  6. kristinak Group Title
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    (X-1)^2

    • 3 months ago
  7. myininaya Group Title
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    okay so if you do that then we have x^2-8x+13+3=0+3 x^2-8x+16=3

    • 3 months ago
  8. myininaya Group Title
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    so are you think x^2-8x+16 can be written as square?

    • 3 months ago
  9. myininaya Group Title
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    and you are right about my example

    • 3 months ago
  10. kristinak Group Title
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    Yes

    • 3 months ago
  11. myininaya Group Title
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    x^2-8x+16 can be written as (x- ? )^2

    • 3 months ago
  12. myininaya Group Title
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    what is ?

    • 3 months ago
  13. kristinak Group Title
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    (x-4)^2

    • 3 months ago
  14. myininaya Group Title
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    yeah

    • 3 months ago
  15. myininaya Group Title
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    you did this all by yourself @kristinak

    • 3 months ago
  16. kristinak Group Title
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    yeah but i still dont know the answer

    • 3 months ago
  17. myininaya Group Title
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    you are saying we have (x-4)^2=3

    • 3 months ago
  18. myininaya Group Title
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    4 and 3 are totally integers

    • 3 months ago
  19. kristinak Group Title
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    so its b?

    • 3 months ago
  20. myininaya Group Title
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    :(

    • 3 months ago
  21. myininaya Group Title
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    Can you tell me where you are confused on your first choice?

    • 3 months ago
  22. kristinak Group Title
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    i thought you said i was wrong when i said it was D?

    • 3 months ago
  23. myininaya Group Title
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    never said that

    • 3 months ago
  24. myininaya Group Title
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    i simply was working through what D would have given us

    • 3 months ago
  25. myininaya Group Title
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    do you not think 4 and 3 are integers?

    • 3 months ago
  26. kristinak Group Title
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    No they are

    • 3 months ago
  27. kristinak Group Title
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    thank you so much, sorry i was confused

    • 3 months ago
  28. myininaya Group Title
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    its okay

    • 3 months ago
  29. kristinak Group Title
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    can you help me with another?

    • 3 months ago
  30. myininaya Group Title
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    alright

    • 3 months ago
  31. kristinak Group Title
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    one moment

    • 3 months ago
  32. kristinak Group Title
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    • 3 months ago
    1 Attachment
  33. kristinak Group Title
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    @myininaya

    • 3 months ago
  34. kristinak Group Title
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    its the screenshot

    • 3 months ago
  35. myininaya Group Title
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    can you find the vertex for the first one?

    • 3 months ago
  36. kristinak Group Title
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    one moment

    • 3 months ago
  37. kristinak Group Title
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    (70,55)

    • 3 months ago
  38. kristinak Group Title
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    am i right?

    • 3 months ago
  39. myininaya Group Title
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    beautiful!

    • 3 months ago
  40. myininaya Group Title
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    now the vertex is very important for consider the min or even the max for a parabola that is why i asked for the other graph i think a good way to approximate the vertex is just plot those points given

    • 3 months ago
  41. myininaya Group Title
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    i want you to speculate on what you think the vertex is

    • 3 months ago
  42. myininaya Group Title
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    now it helped me to actually plot the points so i encourage you to do so

    • 3 months ago
  43. myininaya Group Title
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    tell me what you think looks like the middle point of that graph

    • 3 months ago
  44. kristinak Group Title
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    (1,899.50)

    • 3 months ago
  45. myininaya Group Title
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    that is very great

    • 3 months ago
  46. myininaya Group Title
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    now the y values for each of these points is the amount of min production cost from each graph

    • 3 months ago
  47. myininaya Group Title
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    aka lowest y value for each graph

    • 3 months ago
  48. myininaya Group Title
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    the question ask you to compare the y values basically it ask which one is greater

    • 3 months ago
  49. kristinak Group Title
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    company 2?

    • 3 months ago
  50. myininaya Group Title
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    right because 899.5>55 so company 2 has a bigger min production cost

    • 3 months ago
  51. kristinak Group Title
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    thank you!! can you help me with like 2 or 3 more?

    • 3 months ago
  52. myininaya Group Title
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    honestly i cannot i have to leave i suggest posting a new question

    • 3 months ago
  53. kristinak Group Title
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    oh okay thank you

    • 3 months ago
  54. myininaya Group Title
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    np have a great night

    • 3 months ago
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