Amotor boat and a raft start traveling downstream. after 1 hour, the boat turns around and travels back until it reaches the raft. how long does it take to get back to the raft? i will mark brainliest and the answer is not 1 hour downstream si faster.

i believe the correct answer is b.

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.