1.

The quadratic function is defined as

A. ƒ(x) = ax2 + bx + c, a ≠ 0
B. ƒ(x) = ax + bx, a ≠ 0
C. ƒ(x) = ax3 + bx + c, a ≠ 0
D. ƒ(x) = a, a ≠ 0
Answer» B. ƒ(x) = ax + bx, a ≠ 0


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