An island is 2 miles from the nearest point P on a straight shoreline. A town is

Question

An island is 2 miles from the nearest point P on a straight shoreline. A town is 11 miles down the shore from P. Island Town X 11-X (a) If a person can row a boat at an average speed of 3 miles per hour and the same person can walk 5 miles per hour, express the time T that it takes to go from the island to town as a function of the distance x from P to where the person lands the boat. |(2+22. 11-x T(x) = (Use integers or fractions for any numbers in the expression.) (b) What is the domain of T? O A. Domain: {x|0

Explanation / Answer

b) x can take values form 0 to 11 so B is correct

c) x = 6

so put x = 6 in part a

T(6) = (sq root 40)/3 +1 = 3.11 hours

d) T(9) =  (sq root 85)/3 +2/5 = 4.07 hours

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