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anonymous

  • one year ago

The midpoint of line UV is (5, -11) The coordinates of one endpoint are U(3, 5) Find the cordinated of endpoint V. (((PLEASE HELP IVE BEEN STUCK ON THIS FOR 20 MINS)))

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  1. anonymous
    • one year ago
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    @AlexandervonHumboldt2 @I_Luv_Skittles @Defiance @freckles

  2. anonymous
    • one year ago
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    explain it too please.

  3. anonymous
    • one year ago
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    will medal and fan.

  4. freckles
    • one year ago
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    so the midpoint we need to think averages the average of two numbers is the sum of those numbers divided by 2 the x coordinate of the midpoint is equal to the sum of the x-coordinates of the endpoint divided by 2 the y coordinate of the midpoint is equal to the sum of the y-coordinates of the endpoint divided by 2

  5. freckles
    • one year ago
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    \[5=\frac{3+x}{2} \\ -11=\frac{5+y}{2}\]

  6. Defiance
    • one year ago
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    Would help but seems freckles has it ;).

  7. freckles
    • one year ago
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    solve the equations

  8. freckles
    • one year ago
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    I forgot to make the word endpoint plural oh well

  9. anonymous
    • one year ago
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    what is x??? how do I do 3+x if I dont know what x is where did you get x from??

  10. freckles
    • one year ago
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    did you read the descriptions above?

  11. freckles
    • one year ago
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    the "x-coordinate of the midpoint" is equal to the "sum of the x-coordinates of the endpoints" "divided by 2"

  12. freckles
    • one year ago
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    V is a point in the form (x,y)

  13. freckles
    • one year ago
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    the x-coordinate of V is x the y-coordinate of V is y since I chose V to be the point (x,y)

  14. anonymous
    • one year ago
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    I get that now but I dont understand the divison part??? can you just write everything out for me to read please

  15. freckles
    • one year ago
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    I'm sorry I thought I did... Can you tell me what you don't understand? Like the division? To find the average of two numbers... You do the sum of those numbers and then you divide 2.

  16. anonymous
    • one year ago
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    theyre numbers on a graph tho so I dont get it

  17. freckles
    • one year ago
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    So if I told you the average of x and 3 is 5 ? This doesn't make sense how I got this: \[\frac{x+3}{2}=5?\]

  18. anonymous
    • one year ago
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    Youre saying the answer is 5?

  19. anonymous
    • one year ago
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    Im really bad at this kinda stuff

  20. freckles
    • one year ago
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    no you are looking for V and V is a point on the cartesian plane

  21. freckles
    • one year ago
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    you are looking for the point (x,y)

  22. anonymous
    • one year ago
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    so the x cord is 5?

  23. freckles
    • one year ago
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    you are given by your question the following to find x and y: The average of x and 3 is 5. The average of y and 5 is -11.

  24. freckles
    • one year ago
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    how did you x is 5?

  25. anonymous
    • one year ago
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    so its (5, -11) ?

  26. freckles
    • one year ago
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    the midpoint is not what we are looking for

  27. freckles
    • one year ago
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    I already said we are looking for V , one of the endpoints which I called (x,y)

  28. anonymous
    • one year ago
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    this is taking so long.. can you just explain everything and help me with the answer

  29. freckles
    • one year ago
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    I'm trying too... so what do you not understand about the following equations: \[5=\frac{3+x}{2} \\ -11=\frac{5+y}{2}\]

  30. freckles
    • one year ago
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    all i did there was apply the average thing I mentioned

  31. anonymous
    • one year ago
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    how do I add 3 to x and 5 to y..

  32. freckles
    • one year ago
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    because that is all the midpoint is is averaging

  33. freckles
    • one year ago
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    you solve for x and y

  34. freckles
    • one year ago
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    multiply both sides by 2

  35. anonymous
    • one year ago
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    so its 3 and 12.5?

  36. freckles
    • one year ago
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    don't understand how you got that did you try multiplying both sides of the equation(s) by 2?

  37. anonymous
    • one year ago
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    I did then divided them

  38. freckles
    • one year ago
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    \[5=\frac{3+x}{2} \\ \text{ multiply both sides by 2 } \\ 10=3+x \\ \text{ now isolate } x\]

  39. anonymous
    • one year ago
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    can you tell me the answer I dont get it my teacher will help me tomorrow

  40. freckles
    • one year ago
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    so you don't want to try to subtract 3 on both sides to isolate x?

  41. anonymous
    • one year ago
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    it would just be x over 2 ....

  42. freckles
    • one year ago
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    you do understand we had 5=(3+x)/2 then I asked you to multiply 2 on both sides giving us 10=3+x the last step to find the x-coordinate of v is to subtract 3 on both sides 10-3=x why are you doing something different from what I suggest?

  43. freckles
    • one year ago
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    now try solving for y coordinate of V -11=(5+y)/2

  44. freckles
    • one year ago
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    it is the same kind of steps we went through to solve for x

  45. anonymous
    • one year ago
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    my computer stopped working but can you just tell me it

  46. anonymous
    • one year ago
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    Ive spent over an hour on one problem...

  47. anonymous
    • one year ago
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    @freckles

  48. anonymous
    • one year ago
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    ANYONE PLEASE :( IVE SPENT AN HOUR+ ON THIS QUESTION.... @*louisa* @perii224 @AlexandervonHumboldt2 @mrqueest

  49. anonymous
    • one year ago
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    @Vocaloid

  50. anonymous
    • one year ago
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    please...

  51. Vocaloid
    • one year ago
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    start with the x-coordinates (x+3)/2 = 5 solve for x

  52. anonymous
    • one year ago
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    can you just give me the answer :/ i really dont get it my teacher will help me tomorrow. Ive spent over an hour on this...

  53. Vocaloid
    • one year ago
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    start by multiplying both sides by 2 (x+3)/2 * 2 = ?

  54. anonymous
    • one year ago
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    4

  55. Vocaloid
    • one year ago
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    nope, not quite... hint: A/2*2 = A (x+3)/2*2 = ?

  56. anonymous
    • one year ago
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    2*2 is 4

  57. Vocaloid
    • one year ago
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    does this make it more clear?|dw:1443724308435:dw|

  58. anonymous
    • one year ago
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    I DONT KNOW WHAT THIS MEANS AHHHHHH

  59. Vocaloid
    • one year ago
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    just follow the pattern|dw:1443724350579:dw|

  60. anonymous
    • one year ago
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    um I dont know what youre talking about can you just tell me it or Ill get it wrong I dont have the time to spend any more time on this one question...

  61. anonymous
    • one year ago
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    @Vocaloid

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