A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

does anyone know how to graph y=-2x^2 ?

  • This Question is Closed
  1. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    if you were to replace x with 0, what would the value of y be?

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

    0, right?

  3. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes, so one ordered pair, ie point, on the graph is (0,0)

  4. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    if x = 1, then y = -2 leading us to another point (1,-2) if x = 2, then y = -8 leading us to another point (2,-8) etc etc you make a table of points and then plot those points. The more points, the more accurate the graph. Once you have all the points plotted, you draw a curve through all of the points

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

    thank you, this helps so much!!

  6. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    you're welcome I recommend checking your answer with something like desmos (a free online graphing calculator) https://www.desmos.com/calculator/ the calculator also allows you to generate a table of points

  7. 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.