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anonymous

  • 4 years ago

I asked a ? earlier and I still do not understand it could someone please help...Find the distance between these 2 points (-3,5) & (6,-2). Be sure that the answer is simplified and in radical form. Show all work.

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  1. Hero
    • 4 years ago
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    Plot the points and use pythagorean theorem or distance formula

  2. anonymous
    • 4 years ago
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    thats what the last person told me and apparently i am not doing something right

  3. Hero
    • 4 years ago
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    You have graph paper right?

  4. anonymous
    • 4 years ago
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    no i am doing it all on computer

  5. Hero
    • 4 years ago
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    Do you have a graphic plotting device on your computer?

  6. anonymous
    • 4 years ago
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    no we are not allowed to do it that way. I meant my assignment is on computer. I am having to do it all on paper and show all of my work

  7. Hero
    • 4 years ago
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    you shouldn't do math without graph paper handy. Math 101

  8. anonymous
    • 4 years ago
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    ok I will remember that....i have the distance formula as sqrt((x2-x1)^2+(y2-y1)^2) but I do not know how to put everything into that formula or where to go from there

  9. Hero
    • 4 years ago
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    Label the points and plug them in. It's easy

  10. anonymous
    • 4 years ago
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    ok let me see here give me a sec.

  11. anonymous
    • 4 years ago
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    when it comes to x1 and x2 does it matter which x # I put where

  12. Hero
    • 4 years ago
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    yes it does

  13. Hero
    • 4 years ago
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    label your points like this: (x1,y1) (x2, y2)

  14. anonymous
    • 4 years ago
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    ok so I would insert -3 in the x2 spot right

  15. anonymous
    • 4 years ago
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    ok now im confused

  16. Hero
    • 4 years ago
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    okay, let me show you

  17. Hero
    • 4 years ago
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    (x1,y1) = (-3,5) (x2,y2) = (6,-2) Is that clear enough?

  18. anonymous
    • 4 years ago
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    so when it says x2 or y2 that just means its place and not to the 2nd power

  19. Hero
    • 4 years ago
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    yes, correct

  20. anonymous
    • 4 years ago
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    ok give me a sec

  21. anonymous
    • 4 years ago
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    Ok when I plug them all in I got sqrt((6-(-3))^2+(-2-(-5)^2=(3)^2+(3)^2=9+9=81

  22. Hero
    • 4 years ago
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    You did something wrong. For that first one (6-(-3)^2 = (6+3)^2 = 9^2, not 3^2

  23. Hero
    • 4 years ago
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    This is why graphing method is better

  24. Hero
    • 4 years ago
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    But also 9+9 = 18 , not 81. You're supposed to add at the end not multiply

  25. anonymous
    • 4 years ago
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    Ok so the 2nd 1 would be (-2-(-5)^2=(7)^2=14

  26. Hero
    • 4 years ago
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    You had the second one right already ....face palm :P

  27. Hero
    • 4 years ago
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    (-2-(-5))^2 = (-2+5)^2 = (3)^2 = 9

  28. anonymous
    • 4 years ago
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    so my points would be (18,9)

  29. Hero
    • 4 years ago
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    You're not trying to find anymore points. You're trying to find DISTANCE

  30. anonymous
    • 4 years ago
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    ok so what do i have to do from here

  31. Hero
    • 4 years ago
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    Basically, when you calculated it the first time, you made a couple of adding mistakes. That's all. Try it again.

  32. Hero
    • 4 years ago
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    And post your steps just like last time. Just be more careful

  33. anonymous
    • 4 years ago
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    what do you mean

  34. Hero
    • 4 years ago
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    i meant for you to try to calculate it again. But try to add correctly this time.

  35. anonymous
    • 4 years ago
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    it would b 6 and not 9

  36. Hero
    • 4 years ago
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    the answer is d = 3root(10). Try to figure out how I got that

  37. anonymous
    • 4 years ago
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    that would be 130

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