Question

20 POINTS FOR HELP!!!!

Answer 1

So to find the speed we find the unit rate
to do that we do (y2-y1)/(x2-x1)

so we can use any points, but I'm going to use points (0,25) and (1,75)

75-25=50
2-1=1
then we do rise(y) over run(x)
50/1=50

so the boat is going 50mph making your answer. D

Answer 2

50 mph y=50x+25 where x is hours traveled and y is total distance