A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

write the slope intercept equation for the line that passes thru (-2,3) and perpendicular to 2x-9y=-12. show work

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

    ok, so the slope intercept equation is y=mx + b

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

    but first you should isolate y in the equation you already have. So you can isolate the rate of change aka the mx part.

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

    -9y = -2x - 12 then: y = (2/9)x - 12/9 to simplify: y =(2/9)x - 4/3 aka 1 1/3

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

    so then, as its perpendicular, you'll know that the slope of the opposite line is the negative recipricol. in this case, -9/2x

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

    then, input (-2,3) respectfully in the x and y places in the now modified equation. so you get: 3 = (-9/2)(-2) + b so: 3 = 9 + b then: -6 = b

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

    so you end up with y=-9/2x - 6

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

    Hope that helped. medal, s'il vous plait? :)

  8. 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.