Write y = 2x2 + 4 in function notation.

A) f (x) = 2x2 + 4

B) f (y) = 2x2 + 4

C) f (y) = 2y2 + 4

D) f (x) = 2y2 + 4

What dose it mean to group in math

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The output is the cube of the input.

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