Question

I WILL MARK AS BRAINIEST, 5 STAR, AND UP-VOTE !!!!!!! HELP!!!
The table below shows the outputs y for different inputs
x: Input (x) 1 1 3 3
Output (y) 4 2 12 6
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 paddle boat for x hours is shown below: f(x) = 20 + 10x
What is the value of f(120), and what does f(120) represent? (5 points)

Answer 1

part A; I would say no. for a given value of x there are 2 values for y
y = 2x and y = 4x if y was a function of x there would be only 1 value of y for a given value of x


part b; f(120) = 20 + 120(10) = 1220
The total cost in dollars, for renting a paddleboat for 120 hours

Answer 2

a) No because every input must have only one output. think of it as if there were a game with only one button, but the thing was that that button had multiple uses. so when you hit the button wanting it to jump, it might duck instead.
B) 120=fx so the equation would be re-written as fx=120=20 + 10x
SOLVE: x=10