## Which of the following is a quadratic function? A. y = (x + 2)(2x – 3) B. y = 3(x-4) mo a D. y = x(x-4)(x+3)

Question

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## Answers ( )

A is the answer, because the highest exponent is 2.quadraticA’s expression foiled would be 2x^2 + x – 6

B’s expression foiled would be 3x – 12, where the exponent on x is only 1.

D’s expression foiled would be x^3 – x^2 – 12x, where the exponent on x is 3.