Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

rebecca1233

  • 3 years ago

Determine whether the graph of y = 3x^2 + 2x − 10 opens up or down and whether it has a maximum or minimum point. Up; Minimum Up; Maximum Down; Minimum Down; Maximum

  • This Question is Closed
  1. gaurav89
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    someone just asked this .. here was my ans Easiest if you graph it. it opens up bc coefft of x^2 is positive And has a min. Differentiate, get slope, see where slope = 0.

  2. rebecca1233
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thank You! Can you help me some more please :)

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

    Standard from: y = ax^2 + bx + c Now, the a will tell you everything. When the a is negative, it will go down. Therefore, it has a maximum. if a is positive, it will go up. Therefore it has a minimum

  4. rebecca1233
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay thanks. can you help me some more :)

  5. rebecca1233
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    http://openstudy.com/study#/updates/502539a7e4b0d38989b738c5

  6. gaurav89
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    graph it on yr phone - youll see it opens up. and maybe also plot some 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