1. line fg contains points f (3, 7) and g (−4, −5). line hi contains points h (−1, 0) and i (4, 6). lines fg and hi are

parallel

perpendicular

neither

2. line ab contains points a (8, −4) and b (1, −5). the slope of line ab is

−7

negative 1 over 7

1 over 7

7

The best and most correct answer among the choices provided by the first question is the first choice "parallel"

On the other hand, the best and most correct answer among the choices provided by the second question is  the fourth choice "7"

It can be solved by two-point form which is:

m = (y2-y1)/(x2-x1)

I hope my answer has come to your help. God bless and have a nice day ahead!