Question 59500
Hi Lyn,
I saw some questions by you about graphing inequalities.  I can only graph equalities or I would have answered those also.
Can someone help me solve the system by graphing it for me?
 I have to send it through the computer.

E1)  x - 2y = 8
E2)  x + y = -1
:
For E1, let x=0 and solve for y
0-2y=8
-2y/-2=8/-2
y=-4  Plot (0,-4)
Now let y=0 and solve for x:
x-2(0)=8
x-0=8
x=8  Plot (8,0)
Connect the points and you have a line:
{{{graph(300,200,-10,10,-10,10,(-x+8)/-2)}}}
For E2, let x=0 and solve for y:
0+y=-1
y=-1  Plot (0,-1)
Now let y=0 and solve for x:
x+(0)=-1
x=-1 Plot (-1,0)
Connect the points and you have a second line:
{{{graph(300,200,-10,10,-10,10,(-x+8)/-2,-x-1)}}}
They intersect at (2,-3)
I think I did this one earlier today.  Maybe it was for someone else.
Happy Calculating, Lyn!!!