Question 937401
(1, -1), and 
(5, 13)  m ={{{(y[1] - y[2])/(x[1] - x[2] )}}}, m = -13/-4 = 13/4
***Using point-slope form, {{{y - y[1] = highlight_green(m)(x - x[1])}}}
y+1 = (13/4)(x-1)
y =  (13/4)x - 17/4
Standard Form:
13x - 4y = 17