Question

For what length of time does the log boat travel up the ride's conveyor belt?

Answer 1

The correct answer is:

B) 30 seconds.

Explanation:

The part of the graph where y increases represents the log boat traveling up the conveyor belt.

This starts at x=0 (0 seconds, when the ride begins) and ends at x=0.5 (0.5 minutes, or 30 seconds).  This means it takes 30-0 = 30 seconds.

Answer 2

the complete question in the attached figure

the solution is at the point  (0.5,70)

(0.5,70)--------------- > 0.50 minutes and 70 feet

0.50 minutes-------------- > 30 seconds

the answer is 30 seconds