Answer:
b) slope of the given line is m = - 3
Step-by-step explanation:
(x1 , y1 ) = ( 1 ,2 ) , ( x2 , y2 ) = ( 3, - 4 )
Slope m = y2 - y1
x2 - x1
m = - 4 - 2. = - 6 = - 3
3 - 1 2
