Question

The graph shows the distance, y, in miles, of a moving motorboat from an island for a certain amount of time, x, in hours:

What is the speed of the motorboat?

30 miles per hour
45 miles per hour
15 miles per hour
135 miles per hour

Answer 1

(0,15)(1,45)
slope = (45 - 15) / ( 1 - 0) = 30 mph