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Which phrase describes a nonlinear function?

•A) The area of a circle as a function of the radius.

•B) The perimeter of a square as a function of the side length.

•C) The cost of gasoline as a function of the number of gallons purchased.

•D) The distance traveled by a car moving at the constant speed as a function of time.

Respuesta :

taskmasters
Out of the given choices, the phrase that best describes a nonlinear function is letter A. The area of a circle as a function of the radius. This is because area is calculated through the equation,
                                A = πr²
All the rest of the choices presents linear functions. 

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