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

raebaby420 Group Title

Solve the system 2x + 2y = -6 and 3x - 2y = 11 by using graph paper or graphing technology. What is the solution to the system? (-1, -7) (1, -4) (2, -1) (3, -2)

  • one year ago
  • one year ago

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

    It would be a far greater service to her, and also comply with the code of conduct of the site, to explain to her HOW to arrive at an answer, rather than just spit it out. http://openstudy.com/code-of-conduct

    • one year ago
  2. DebbieG Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    @raebaby420, it says to "solve by graphing". Do you know how to graph each of those 2 lines? Once you graph the 2 lines, do you know what it means for a point to be a "solution to the system"? The system has 2 equations, each one graphs as a line. so every point on ONE line is a solution to THAT equation; every point on the OTHER line is a solution to THAT equation. To be a solution TO THE SYSTEM, a point would have to be on BOTH lines. When you have a graph of 2 lines (that are not parallel), what point is on BOTH lines? That is, how do you tell when you look at the graph which point is on BOTH?

    • one year ago
  3. mhmdrz91 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    @DebbieG u right... sorry...

    • one year 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.