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
What is the speed of the motorboat?
30 miles per hour
45 miles per hour
15 miles per hour
135 miles per hour