SOLUTION: could you please help me with a couple of problems? These are systems of equations(2 by 2) and we have to graph it.(the graphing method) 1) x + y = 1 3x + y = 7 2) 3x + 4

Algebra.Com
Question 144931: could you please help me with a couple of problems? These are systems of equations(2 by 2) and we have to graph it.(the graphing method)
1) x + y = 1 3x + y = 7
2) 3x + 4y = 5 x - 2y = 5

Thank you in advance for your time and help Elle J

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
have to graph it.(the graphing method)
1) x + y = 1 3x + y = 7
y = -x + 1
Plot two points:
Let x = 0, then y = 1
Let x = 1, then y = 0
----------------
y = -3x + 7
Let x = 0, then y = 7
Let x = 1, then y = 4

===================================================
2) 3x + 4y = 5 x - 2y = 5
y = (-3/4)x + (5/4)
Plot two points:
Let x = 0, then y = (5/4)
Let x = 1, then y = (1/4)
-------------------------------
y = (1/2)x - (5/2)
Plot two points:
Let x = 0, then y = (5/2)
Let x = 1, then y = -2
------------------------------

=======================
Cheers,
Stan H.

RELATED QUESTIONS

Could someone please help me with a couple of problems,that I'm having trouble with?... (answered by nerdybill)
Could you please help me with a couple of problems?These are systems of equations... (answered by checkley77)
Could someone please help me with a few problems?These are Systems of equations,and these (answered by algebrapro18)
Good morning tutors, I have a couple of questions. I have to solve and graph these... (answered by ankor@dixie-net.com)
To Whom It May Concern: I have beeen having problems with algebra II every since i... (answered by josmiceli)
Hi, Can you please help? . Can you please give me some math problems for my homework?... (answered by jim_thompson5910)
Could someone help me with a few system of equations problems please? These ones are to... (answered by jim_thompson5910)
Could you verify if I have corrected determined the correct type of linear equation graph (answered by ikleyn)
Hi I need help with a couple of problems. I need to solve these system of equations by... (answered by jb007mi6)