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

sm101

Graph the inequality y > −4x

  • one year ago
  • one year ago

  • This Question is Closed
  1. freewilly922
    Best Response
    You've already chosen the best response.
    Medals 1

    Do you know how to graph y=-4x?

    • one year ago
  2. sm101
    Best Response
    You've already chosen the best response.
    Medals 0

    No, thats why I asked...

    • one year ago
  3. freewilly922
    Best Response
    You've already chosen the best response.
    Medals 1

    Not y>-4x but y=-4x

    • one year ago
  4. sm101
    Best Response
    You've already chosen the best response.
    Medals 0

    eh.. I don't know how to do either. Do you mind drawing it for me?

    • one year ago
  5. freewilly922
    Best Response
    You've already chosen the best response.
    Medals 1

    1) I can't do it for you. There are limits to the help we can give. The best I can do is show you. The easiest way is plug and chug. If you can find two points for an equation you can draw it by connecting the two points with a ruler and drawing a line. For y=-4x what is y for x=0 and x=-1? what is y=-4(0) ? y=-4(-1)?

    • one year ago
  6. sm101
    Best Response
    You've already chosen the best response.
    Medals 0

    y=0 and y=4

    • one year ago
  7. sm101
    Best Response
    You've already chosen the best response.
    Medals 0

    are these the 2 points?

    • one year ago
  8. freewilly922
    Best Response
    You've already chosen the best response.
    Medals 1

    These are the y values for your two points. (x1,y1) (x2,y2) You chose x1= 0 and x2=-1 and found y1= 0 and y2 = +4 so your points are (0,0) and (-1,4) so on graph paper or your own sketched graph you can plot (0,0) and (-1,4) draw a line between them.

    • one year ago
  9. sm101
    Best Response
    You've already chosen the best response.
    Medals 0

    ok.. would I have to shade anything on the graph.. or make the line that passes through the points dashed?

    • one year ago
  10. freewilly922
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes. When it says y> -4x it is implying that all the y values above y=-4x. So that would mean you would dash the line, to show you are not including the line in the graph, and then shade everything ABOVE the dashed line.

    • one year ago
  11. sm101
    Best Response
    You've already chosen the best response.
    Medals 0

    I thought so... glad I checked.

    • one year ago
  12. freewilly922
    Best Response
    You've already chosen the best response.
    Medals 1

    So for (0,0) at x=0 all the y values above 0 should be shaded, but not 0.

    • one year ago
  13. sm101
    Best Response
    You've already chosen the best response.
    Medals 0

    Gotcha. Thank you!

    • 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.