a fisherman can row up stream at 2 mph and down stream at 8 mph. He started rowing up stream until he was tired and then rowed down stream to his starting point. how far did the fisherman row if the entire trip took 2 hour?

The fisherman rowed a total of 22.4 miles.

Explanation

Suppose, the distance from his starting point to the turn around point is  mile.

Given that, upstream speed is 2 mph and downstream speed is 8 mph.

We know that,  

So, the time required to row  miles upstream   hours and the time required to row  miles downstream   hours.

As the entire trip took 7 hours, so the equation will be

So, the fisherman rowed a total of (11.2×2) miles = 22.4 miles

Step-by-step explanation:

f(x) is the value of the function. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

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