Question 817841
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
What is the equation of the line that passes through 
(4,7) and 
(8,2)   m ={{{(7-2)/(4-8)}}} m =  5/(-4) = -5/4    {{{m =(y[2] - y[1])/(x[2] - x[1])}}}  
Using point-slope formula, {{{y - y[1] = m(x - x[1])}}}, 
  y - 7 = {{{highlight(-5/4)(x-4)}}} 0r  {{{y = highlight(-5/4)x+12)}}} 
{{{drawing(300,300,   -10,10,-10,10, 
 grid(1),
circle(4, 7,0.4),
circle(8, 2,0.4),
graph( 300, 300, -10,10,-10,10,0, -1.25x + 12))}}}