Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
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
 2 years ago
 2 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
 2 years ago
 2 years ago

This Question is Closed

FC_Barcelona13Best ResponseYou've already chosen the best response.0
im gonna say d and b
 2 years ago

needhelp3333Best ResponseYou've already chosen the best response.0
How did you get that?
 2 years ago

TuringTestBest ResponseYou've already chosen the best response.3
If your graph hits the xaxis 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 "doubleroot" 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 xaxis. 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 xaxis.
 2 years ago

needhelp3333Best ResponseYou've already chosen the best response.0
Ohhhh I got it thanks
 2 years ago

TuringTestBest ResponseYou've already chosen the best response.3
FC barcelona is wrong about one of the answers, by the way. You figure out which.
 2 years ago

needhelp3333Best ResponseYou've already chosen the best response.0
Ok thanks for the tip
 2 years ago
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
 Engagement 19 Mad Hatter
 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.