Final answer:
The constants a, b, and c in a quadratic equation represent the coefficients of the quadratic function.
Step-by-step explanation:
The constants a, b, and c in a quadratic equation of the form ax² + bx + c = 0 represent the coefficients of the quadratic function.
The coefficient a represents the coefficient of the quadratic term, b represents the coefficient of the linear term, and c represents the constant term.
In the given options, the correct values for a, b, and c are:
A) a = 9, b = -12, c = 4
Therefore, the answer is option A) a = 9, b = -12, c = 4.