Identify which of the following equations represent functions. Select all that apply. A. y = 4x + 13 B. x = 5 C. x2 + y2 = 16 D. y2 = One-thirdx - 6 E. y = 3x2 - x - 1

The correct functions are y = 4x + 12 and y = 3x2 - x - 1  since y is dependent on x in both functions'

Function are expressions that consist of both an input value called the domain and the output value known as the range

For instance, y = mx + b is a function where x is the input value and "y" is the output value.

From the given options, the correct functions are y = 4x + 12 and y = 3x2 - x - 1  since y is dependent on x in both functions.

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