Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
raebaby420
Group Title
Please help..
What are the solutions to the following system of equations?
y = x2 + 12x + 30
8x − y = 10
(−4, −2) and (2, 5)
(−2, −4) and (2, 5)
(−2, −4) and (5, 2)
No Real Solutions
 one year ago
 one year ago
raebaby420 Group Title
Please help.. What are the solutions to the following system of equations? y = x2 + 12x + 30 8x − y = 10 (−4, −2) and (2, 5) (−2, −4) and (2, 5) (−2, −4) and (5, 2) No Real Solutions
 one year ago
 one year ago

This Question is Closed

raebaby420 Group TitleBest ResponseYou've already chosen the best response.0
@Nurali
 one year ago

uri Group TitleBest ResponseYou've already chosen the best response.0
@DebbieG Help her ^_^ Uri is proud of you.
 one year ago

DebbieG Group TitleBest ResponseYou've already chosen the best response.0
What methods have you learned for solving a system? Substitution, elimination?
 one year ago

raebaby420 Group TitleBest ResponseYou've already chosen the best response.0
Elimination I think
 one year ago

raebaby420 Group TitleBest ResponseYou've already chosen the best response.0
And some substitution but I cant remember how to do that method
 one year ago

DebbieG Group TitleBest ResponseYou've already chosen the best response.0
I would probably opt for substitution here, since you have a quadratic (a parabola) and a linear equation (a line). But either would work. If you solve the 2nd equation for y, then you have two equations that both give y as a function of x, right? E.g., you have y={some stuff} and y={some different stuff} so since y= both of those things, you can set them equal to each other.
 one year ago

DebbieG Group TitleBest ResponseYou've already chosen the best response.0
When you do that, you'll have a single, quadratic equation to solve.
 one year ago

raebaby420 Group TitleBest ResponseYou've already chosen the best response.0
..... that makes no sense
 one year ago

DebbieG Group TitleBest ResponseYou've already chosen the best response.0
What part didn't make sense? Here are your two equations: \[y=x^2+12x+30\]\[8xy=10\]Can you solve the 2nd one for y?
 one year ago

raebaby420 Group TitleBest ResponseYou've already chosen the best response.0
Idk how.. I only know how to solve the ones with Y on the other side of the equal sign
 one year ago

DebbieG Group TitleBest ResponseYou've already chosen the best response.0
You just need to rearrange 8xy=10 so that the y is by itself. Try adding y to both sides: 8xy+y=10+y What do you get when you simplify that? Then subtract 10 from both sides.
 one year ago

raebaby420 Group TitleBest ResponseYou've already chosen the best response.0
IM SO FREAKING LOST
 one year ago

raebaby420 Group TitleBest ResponseYou've already chosen the best response.0
THANKS GUYS. I don't need any more help
 one year ago

DebbieG Group TitleBest ResponseYou've already chosen the best response.0
@jessssloukaa the idea is not to do the problem FOR her.
 one year 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.