Question 59498
Hi Lyn,
E1)  x - y = 5
E2)  x + y = 3
:
For E1) let x=0 and solve for y:
0-y=5
-y=5
-1(-y)=-1(5)
y=-5  Plot (0,-5)
Now let y=0 and solve for x:
x-0=5
x=5  Plot (5,0)
Connect the points and you have this line:
{{{graph(300,200,-10,10,-10,10,x-5)}}}
For E2) let x=0 and solve for y:
0+y=3
y=3  Plot (0,3)
Now let y=0 and solve for x:
x+0=3
x=3  Plot (3,0)
Connect the points and you have a second line:
{{{graph(300,200,-10,10,-10,10,x-5,-x+3)}}}
They intersect at: (4,-1)
Happy Calculating, Lyn!!!