Question 918975
the standard slope-intercept form for an equation of a line is 
{{{y = highlight_green(m)x + highlight(b)}}}  where m is the slope and b the y-intercept. 
 25x-15y=225 Solving for y
(25/15)x - 225/15 = y
{{{y = highlight_green(5/3)x + highlight(-15)}}}
m = 5/3