# Math Help - Help with some "quadratics": Non-Linear Systems of Equations.

1. ## Help with some "quadratics": Non-Linear Systems of Equations.

EX 1 --- What are the solutions to the following system of equations?
y = x2 + 12x + 35
4x + y = –28
A) (–7, 0) and (9, –8)
B) (0, –7) and (–9, 8)
C) (–7, 0) and (–9, 8) D) (0, –7) and (9, –8)

Ex2 --- Which system of equations is represented by the graph?

A) y = x2 – 5x – 3
6x – y = –27
B) y = x2 – 5x + 3
6x – y = 27
C) y = x2 + 5x + 3
6x + y = –27 D) y = x2 + 5x – 3
6x + y = 27

Ex3 --- What are the solutions to the following system of equations?
y = 2x2 + 13x + 20
5x – y = 1

A) (–2, 2) and (1, 4)
B) (2, –2) and (4, 1)
C) (–2, 2) and (4, 1)
D) No Real Solutions

Ex4 --- What is the solution to the following system of equations?
y = x2 + 10x + 11
y = x2 + x – 7
A) (–2, –5)
B) (2, –5)
C) (–2, 5)
D) (2, 5)

EX5 --- What are the solutions to the following system of equations?
y = x2 + 12x + 30
8x – y = 10
A) (–4, –2) and (2, 5)
B) (–2, –4) and (2, 5)
C) (–2, –4) and (5, 2) D) No Real Solutions

THANKSSS!!!!!

2. ## Re: Help with some "quadratics" (Non-Linear Systems of Equations ) excersises.. :$Originally Posted by raimel EX 1 --- What are the solutions to the following system of equations? y = x2 + 12x + 35 4x + y = –28 A) (–7, 0) and (9, –8) B) (0, –7) and (–9, 8) C) (–7, 0) and (–9, 8) D) (0, –7) and (9, –8) Ex2 --- Which system of equations is represented by the graph? A) y = x2 – 5x – 3 6x – y = –27 B) y = x2 – 5x + 3 6x – y = 27 C) y = x2 + 5x + 3 6x + y = –27 D) y = x2 + 5x – 3 6x + y = 27 Ex3 --- What are the solutions to the following system of equations? y = 2x2 + 13x + 20 5x – y = 1 A) (–2, 2) and (1, 4) B) (2, –2) and (4, 1) C) (–2, 2) and (4, 1) D) No Real Solutions Ex4 --- What is the solution to the following system of equations? y = x2 + 10x + 11 y = x2 + x – 7 A) (–2, –5) B) (2, –5) C) (–2, 5) D) (2, 5) EX5 --- What are the solutions to the following system of equations? y = x2 + 12x + 30 8x – y = 10 A) (–4, –2) and (2, 5) B) (–2, –4) and (2, 5) C) (–2, –4) and (5, 2) D) No Real Solutions THANKSSS!!!!! Do not cheat. Teachers expect questions that form part of an assessment that contributes towards the final grade of a student to be the work of that student and not the work of others. For that reason, MHF policy is to not knowingly help with such questions. If a question presents in such a way as to suggest that it falls in this category, a Moderator will Close the thread (with an explanation as to why the thread was closed). The original poster can always send a pm to the Moderator to discuss the situation but if the Moderator is unconvinced, then the thread will remain closed. When a Moderator is certain that a particular member is attempting to cheat, that member will be banned and the offending thread removed. Where possible, the institute at which the member studies at will also be notified and a copy of the thread provided. This may sound harsh but the fact is that MHF places a high premium on academic honesty and integrity. Do not ask too many questions in one thread. Do not ask more than two questions in a post. And do not tag new questions onto a thread that have nothing to do with the original question (follow-up questions are OK). Otherwise the thread gets convoluted and difficult to follow. It is better for forum organization and better for you to get your questions answered in a more timely manner if you start new threads as necessary for remaining questions. eg. If you have five questions, post two of them in two threads and start a new thread for the remaining one etc. And if the question has more than two parts to it, it is best to post only that question and its parts in the thread and start a new thread for other questions. Show some effort.If you want help with a question it is expected that you will show some effort. Effort might include showing your working, taking the time to learn how to typeset equations using latex (there is an entire subforum devoted to this), formatting your question so that it is more easily understood, using effective post titles and posting in the appropriate subforum, making a genuine attempt to understand the help that is given before asking for more help and learning from previous questions asked. Moderators reserve the right to Close threads in cases where the member is not making a genuine effort (particularly if the member is spamming the forums with multiple questions of exactly the same type). It should also be remembered that all contributors to MHF are unpaid volunteers and are under no obligation to answer a question. 3. ## Re: Help with some "quadratics" (Non-Linear Systems of Equations ) excersises.. :$

Originally Posted by raimel
EX 1 --- What are the solutions to the following system of equations?
y = x2 + 12x + 35
4x + y = –28
A) (–7, 0) and (9, –8)
B) (0, –7) and (–9, 8)
C) (–7, 0) and (–9, 8) D) (0, –7) and (9, –8)

Ex2 --- Which system of equations is represented by the graph?

A) y = x2 – 5x – 3
6x – y = –27
B) y = x2 – 5x + 3
6x – y = 27
C) y = x2 + 5x + 3
6x + y = –27 D) y = x2 + 5x – 3
6x + y = 27

Ex3 --- What are the solutions to the following system of equations?
y = 2x2 + 13x + 20
5x – y = 1

A) (–2, 2) and (1, 4)
B) (2, –2) and (4, 1)
C) (–2, 2) and (4, 1)
D) No Real Solutions

Ex4 --- What is the solution to the following system of equations?
y = x2 + 10x + 11
y = x2 + x – 7
A) (–2, –5)
B) (2, –5)
C) (–2, 5)
D) (2, 5)

EX5 --- What are the solutions to the following system of equations?
y = x2 + 12x + 30
8x – y = 10
A) (–4, –2) and (2, 5)
B) (–2, –4) and (2, 5)
C) (–2, –4) and (5, 2) D) No Real Solutions

THANKSSS!!!!!
Solving these systems boils down to solving a quadratic equation, which you have been given plenty of help with and should know how to. As to how to get the quadratic equation, you need to go to your class notes or textbook and review some relevant examples. After doing this, please show what work you've been able to do and say exactly where you're still stuck.