A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

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. Triangle ABC and DEF are shown. A is at negative 2, 1. B is at negative 2, 4. C is at 1, 1. D is at 4, 2. E is at 4, 4. F is at 6, 2.

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @jim_thompson5910 (:

  2. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    If you plot the points, and connect them, you should get this

  3. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    to find the slope of BC, you divide the length of AB over the length of AC basically slope = rise/run the slope of BC is negative since it runs downhill as you move from left to right

  4. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh ok so the length of AB would be 3 right ? and then the length of AC would be 3 to right ?

  5. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    correct on both

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh ok so if i diided those both i would get 1 right ?

  7. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    divide*

  8. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @jim_thompson5910 are u there ?

  9. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    so the slope of BC is -1

  10. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    now find the slope of EF

  11. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok so the length of DE would be 2 and then DF would 2 as well right and when i divide them both i get 1

  12. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    make that result negative since the line EF goes downhill as you read left to right slope of EF = -1

  13. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh ok so would this be the answer ??

  14. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    yes you have shown that slope of BC = slope of EF

  15. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    both are negative 1

  16. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh ok thank you so much ^-^

  17. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    np

  18. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    do u mind helping me with just two more ?

  19. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    I'll help with one more

  20. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.