Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

SephI

  • 2 years ago

Help with graphing, please :P

  • This Question is Closed
  1. SephI
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Choose the slope-intercept equation of the line that passes through the point (-5, -1) and is perpendicular to y = 5/2x + 2

  2. SephI
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    They have the same slope since they are perpendicular. so I know (-5, -1) with a slope of 5/2 has something to do with the equation, but what happens next?

  3. akaisha
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    they dont have the same slope, that is when they are parallel. For perpendicular the slope is opposite

  4. akaisha
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    its a negative reciprocal, so can you figure it out what the slope is from there?

  5. hba
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @SephI User Please Respond.

  6. SephI
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Oh, ok. So I would have a slope of 2/5, and then what?

  7. akaisha
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    close.. m=-2/5 then you use your point-interecpt form: y-y=m(x-x)

  8. SephI
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    y - (-1) = -2/5[(x - (-5)] y + 1 = -2/5x + 5 y = -2/5x - 4? ^ That's not one of my options. So I did it wrong...

  9. akaisha
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    thats close but you need to distribute the (-2/5) to the 5 as well

  10. SephI
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Why is that?

  11. akaisha
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    that is because the x+5 is in parentheses. so the -2/5 applies to both pieces

  12. akaisha
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    or (x-(-5)) however you want to think about it

  13. SephI
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    y - (-1) = -2/5[(x - (-5)] y - (-1) = -2/5x + ??? How would I distribute the 5? Wouldn't it be -2/5*5 Which is -10/5 = -2?

  14. akaisha
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    yes! perfect. so you would have (y-(-1))=-2/5x-2 then you just need to y by itself

  15. SephI
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    y + 1 = -2/5x - 2 y = -2/5x - 3 - 1 y = -2/5x - 3?

  16. akaisha
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    yep! That should be your answer.

  17. SephI
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    It is. thanks

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

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.