The equation "y=mx+b" is the slope-intercept forme of a line with slope "m" and y-interceptept (0,b)
In this case:
y=2x+5;
the slope "m" will be equato to : "2".
Answer: the slope is 2.
I believe it is the first one but I might be wrong.
If you want to work out the force then F=MA, therefore 43*8.6=369.8 Newtons
Answer:
I think it is the last one