Question 437957
  <pre><font face = "Tohoma" size = 4 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.  
x-intercept=4, m=2
  y = 2x + b   |Pt(4,0) on the line: use ordered pair to solve for b
  0 = 8 + b
 -8 = b
  y = 2x - 8
{{{drawing(300,300,    -10,10,-10,10,   grid(1),
circle(4, 0,0.3),
circle(0, -8,0.3),
graph( 300, 300,   -10,10,-10,10,0,2x-8  ))}}}