Question

Number
(x) 2 -2 3 -3
Square of the number
(y) 4 4 9 9
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 rowboat for x hours is shown below:
f(x) = 20 + 3x

What is the value of f(150), and what does f(150) represent? (5 points) @iheartfood ?

Answer 1

for part B:
f(x) = 20 + 3x
f(150) = 20 + 3(150) = 20 + 450 = 470 (Answer)
It represents the total cost, in dollars, for renting a rowboat in 150 hours.

Answer 2

Thank you! did you get part A?

Answer 3

For part A:
No.
Proof:

It didn't pass the Vertical Line Test.