The table below shows the fifth roots of different numbers: Number (x) 32 −32 243 −243 Fifth root of the number (y) 2 −2 3 −3 Part A: Does the table represent y as a function of x? Justify you

The table below shows the fifth roots of different numbers:

Number (x) 32 −32 243 −243

Fifth root of the number (y) 2 −2 3 −3

Part A: Does the table represent y as a function of x? Justify your answer. (5 points)

Part B: The total cost f(x), in dollars, for renting a boat for x hours is shown below:

f(x) = 7x + 5

What is the value of f(5) and what does f(5) represent? (5 points)