Question 616901
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi, 
x + y = 3 and 
y = x + 3  OR -x+y = 3

 x + y = 3      GREEN  (3,0) x-intercept  (0,3) y-intercept
-x + y = 3      BLUE   (-3,0) x-intercept  (0,3) y-intercept
    2y = 6
     y = 3  and x = 0  |||Note: (x+y=3)
Pt(0,3) is the Pt of Intersection 
{{{drawing(300,300,   -6, 6, -6, 6,  grid(1),
circle(0, 3,0.3),
circle(3, 0,0.3),
circle(-3, 0,0.3),
graph( 300, 300, -6, 6, -6, 6,0, -x+3, x+3))}}}