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anonymous

  • one year ago

Fan and medal! Triangle ABC is similar to triangle DEF. Using the image below, prove that lines BC and EF have the same slope. You must show all of your work to receive credit.

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  1. anonymous
    • one year ago
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  2. lizz123
    • one year ago
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    Step 1: Find the points for B, C , E, and F.

  3. anonymous
    • one year ago
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    B -2,4 C 1,1 E 4,4 F 6,2 @lizz123

  4. lizz123
    • one year ago
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    yes your correct.

  5. lizz123
    • one year ago
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    Do you know how to use: \[y=\frac{ y2-y1 }{ x2- x1 }\]

  6. lizz123
    • one year ago
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    You can use BC first or EF first

  7. anonymous
    • one year ago
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    No, please explain this to me

  8. anonymous
    • one year ago
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    @lizz123

  9. lizz123
    • one year ago
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    ok using the points you just used there is an x and y part

  10. lizz123
    • one year ago
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    so using the points for B which: B= -2, 4 x will be -2 y will be 4

  11. lizz123
    • one year ago
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    so that will help you fill it in the formula.

  12. lizz123
    • one year ago
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    Technically the points from B= -2,4 it would be written like this x1=-2 y1=4

  13. lizz123
    • one year ago
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    Do C but instead of using x1 and y1 you have to use x2 and y2 so you can use two other numbers for x and y 2

  14. anonymous
    • one year ago
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    y=y2−4/x2+2

  15. anonymous
    • one year ago
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    y=1−4/1+2

  16. anonymous
    • one year ago
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    @lizz123

  17. anonymous
    • one year ago
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    @Hero @Here_to_Help15 @Elsa213 @EmmanuelRocksYou @inowalst @OregonDuck @demonchild99 @sammixboo @campbell_st I need some help!!

  18. campbell_st
    • one year ago
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    look at triangle ABC what is the length of AB what is the length of AC...?

  19. campbell_st
    • one year ago
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    AB is rise and AC is run Slope = rise/run

  20. OregonDuck
    • one year ago
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    A = (-5, 8) C = (-11, 2) x1 y1 x2 y2 slope = Y2-Y1 / X2-X1 = 2-8 / -11--5 = -6/ -11+5 = -6/-6 = 1

  21. anonymous
    • one year ago
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    B -2,4 C 1,1 E 4,4 F 6,2 ABC= 4.5 EFD= 2 @campbell_st that's all I know so far @OregonDuck

  22. anonymous
    • one year ago
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    @OregonDuck could you please explain to me how you got that? ):

  23. anonymous
    • one year ago
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    @Nnesha @perl @Loser66 @sammixboo @pooja195 @uri @Michele_Laino @Champion @geerky42 @Preetha @shifuyanli @Data_LG2 @tHe_FiZiCx99 @myko @Love_Ranaa Mathlete @Mehek14 Im really need some help I've been on this question for like two hours

  24. anonymous
    • one year ago
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    you just have to continue what you were doing :) this for the slope of BC: m=1−4/1+2 what did you get when you solve that?

  25. anonymous
    • one year ago
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    m= -3/3 m= -1 Is this right? @Data_LG2

  26. anonymous
    • one year ago
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    yes. Now do the same thing with EF

  27. anonymous
    • one year ago
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    y=2−4/6-4 -2/2 -1 @Data_LG2

  28. anonymous
    • one year ago
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    right :) Do EF and BC have the same slope?

  29. anonymous
    • one year ago
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    Yes off they're both -1!

  30. anonymous
    • one year ago
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    ofc*

  31. anonymous
    • one year ago
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    exactly :) your proof will be your solution in solving their slopes and you're done with it

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