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raebaby420
 2 years ago
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
raebaby420
 2 years ago
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

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uri
 2 years ago
Best ResponseYou've already chosen the best response.0@DebbieG Help her ^_^ Uri is proud of you.

DebbieG
 2 years ago
Best ResponseYou've already chosen the best response.0What methods have you learned for solving a system? Substitution, elimination?

raebaby420
 2 years ago
Best ResponseYou've already chosen the best response.0And some substitution but I cant remember how to do that method

DebbieG
 2 years ago
Best ResponseYou've already chosen the best response.0I 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.

DebbieG
 2 years ago
Best ResponseYou've already chosen the best response.0When you do that, you'll have a single, quadratic equation to solve.

raebaby420
 2 years ago
Best ResponseYou've already chosen the best response.0..... that makes no sense

DebbieG
 2 years ago
Best ResponseYou've already chosen the best response.0What 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?

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

DebbieG
 2 years ago
Best ResponseYou've already chosen the best response.0You 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.

raebaby420
 2 years ago
Best ResponseYou've already chosen the best response.0THANKS GUYS. I don't need any more help

DebbieG
 2 years ago
Best ResponseYou've already chosen the best response.0@jessssloukaa the idea is not to do the problem FOR her.
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