Question 443744
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi
Ordered pairs  (-1, 3), (7,-1) 
Show that each pair is a solution of the equation:2y + x = 5
 2y + x = 5
 2*3 + -1 = 5   |Ordered pair (-1, 3)  works!
 2y + x = 5
 2*-1 + 7 = 5   |Ordered pair (7, -1)  works!
Others: (3,1), (-3,4) etc
{{{drawing(300,300, -10,10,-10,10,  grid(1),
circle(-1, 3,0.3),
circle(7, -1,0.3),
circle(3, 1,0.3),
circle(-3, 4,0.3),
graph( 300, 300,-10,10,-10,10,0,-.5x + 2.5))}}}
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