Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

needhelp3333

  • 3 years ago

1)What is the possible discriminant of the graph? (graph will be posted separately) A)16 B)0 C)–13 D)21 2)What is the possible discriminant of the graph? A)49 B)12 C)–17 D)0

  • This Question is Closed
  1. needhelp3333
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    2 Attachments
  2. FC_Barcelona13
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    im gonna say d and b

  3. needhelp3333
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    How did you get that?

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

    If your graph hits the x-axis at only one point, then the discriminant is zero. This only occurs because we can ignore the "plus or minus" part of the quadratic formula if the discriminant is zero, giving what is called a "double-root" to the equation (that means one answer, occurring twice). If the discriminant is >0 you will have two real, distinct roots. If this was the case with your graph you would have two points of intersection with the x-axis. If the discriminant is <0 you will have two imaginary, distinct roots, in which case you could not graph the points of intersection on the real plane at all, so the graph will have no intersection with the x-axis.

  5. needhelp3333
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Ohhhh I got it thanks

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

    FC barcelona is wrong about one of the answers, by the way. You figure out which.

  7. needhelp3333
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Ok thanks for the tip

  8. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.