olive4945
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Please help me asap? will mark brainliest to the best answer :))



The table below shows the squares of different numbers:

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.

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?

Respuesta :

altavistard

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

Yes, this table does represent y as a function of x. No x-value appears more than once, and in each case, there is exactly ONE associated y-value. Were there more than one associated y-value, the table would not represent a function.

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f(x) = 20 + 3x

What is the value of f(150), and what does f(150) represent?

Substitute 150 for x (in two instances) in the given function:

f(150) = 20 + 3(150) = 20 + 450 = 470. This is the value of the function when the input value (x) is 150 units.

f(150) is functional notation represents the value (y-value) of the function when the input (x-value) is 150 units.

antoninonguyen
For every x value, y=the squares value of said number. The equation of said values is y=x^2. The value for plunging in 150 for x=470, and f(150) represents the total cost of renting the boat for 150 hours.

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