A community for students.
Here's the question you clicked on:
← 55 members online
 0 viewing
alamojoe9
 3 years ago
Where does the graph of y = 2x2 + x − 15 cross the xaxis?
alamojoe9
 3 years ago
Where does the graph of y = 2x2 + x − 15 cross the xaxis?

This Question is Closed

malexander
 3 years ago
Best ResponseYou've already chosen the best response.0is that 2x^2 +x 15 you mean @alamojoe9 ?

malexander
 3 years ago
Best ResponseYou've already chosen the best response.0if so..its a parabola...Let y = 0 and solve for x...then once you get your two factors, you plug in those numbers into your parabola and that would give you the y for both points...then thats your answer

dpaInc
 3 years ago
Best ResponseYou've already chosen the best response.1factor your expression and set to zero: 2x^2 + x 15 = 0 (2x  5)(x + 3) = 0 solve for x and that's where your graph crosses the x axis.
Ask your own question
Sign UpFind 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
 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.