Which equation does not represent a function? why? a) y = x2; there are two outputs for each input. b) y2 = 4x; there are two outputs for each input. c) y = x; the output value is the same as the input value. d) y = −x; the output value is the opposite of the input value.

the answer is b

Step-by-step explanation:

 D)  

y2 = -5x - 8

Step-by-step explanation:

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Since in y2 = -5x - 8 y is being squared this is not a function. Each input would have 2 outputs.

power property.

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step-by-step explanation: