Question 918259
Line 1 
 x y 
(–1, 6) 
( 0 , 4 ) , m ={{{(y[1] - y[2])/(x[1] - x[2] )}}}= 2/-1 = -2

 Line 2 
 x y 
 (0 , 7 )
 (1 , 5 , m ={{{(y[1] - y[2])/(x[1] - x[2] )}}}= 2/-1 = -2
slopes identical...Lines are parallel...do not intersect: 0 solutions