Question 389973
   <pre><font size = 3 color = "indigo"><b>
Hi,        
Using the standard slope-intercept form for an equation of a line y = mx + b
  where m is the slope and b the y-intercept.  
Line has a slope of -1
 y = (-1)*x + b  using ordered pair Pt(-1,4) to solve for b
 4 = -1*-1 + b
 3 = b
y = -x + 3
{{{drawing(300,300, -6, 6, -6, 6, grid(1),
circle(-1, 4,0.3),
circle(0, 3,0.3),
graph( 300, 300, -6, 6, -6, 6,-x+3))}}}