Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

blondebaby42911 Group Title

How do i graph: x – 3y = –12 2x – y = 1

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. blondebaby42911 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    sorry. its x-3y= 12 2x-y=1

    • 2 years ago
  2. satellite73 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    you looking to graph both and find where they intersect?

    • 2 years ago
  3. satellite73 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    will look like this http://www.wolframalpha.com/input/?i=x+%E2%80%93+3y+%3D+12+and+2x+%E2%80%93+y+%3D+1

    • 2 years ago
  4. EarthCitizen Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    \[y = (x+12)/3,y = 2 x-1\]

    • 2 years ago
  5. satellite73 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    if you are going to do it by hand, probably the best think to do if fine the intercepts

    • 2 years ago
  6. satellite73 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so for \[x-3y=12\] find the x intercept by setting y = 0 get \[x=12\] so you know (12,0) is on the graph. for the y - intercept set x = 0 and get \[-3y=12\implies y=-4\] so you know (0,-4) is on the graph. plot those two points, connect the dots

    • 2 years ago
  7. satellite73 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    repeat the process for \[2x-y=1\] or else rewrite as earthcitizen wrote as \[y=2x-1\] and then replace x by some well chosen numbers and find a couple points

    • 2 years ago
  8. meverett04 Group Title
    Best Response
    You've already chosen the best response.
    Medals 5

    did this help?

    • 2 years ago
  9. blondebaby42911 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yes it di. thankS!

    • 2 years ago
    • Attachments:

See more questions >>>

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.