Final answer:
The function f is given by f(x) = 3x²+2x+1.
Step-by-step explanation:
The function f is given by:
A) f(x)=3x²+2x+1
B) f(x)=2x³-4x²+7x
C) f(x)=x⁴+5x²-1
D) f(x)=-2x³+x²+3x
To determine the function f, we need to find the correct option from the given choices. From the options provided, the correct answer is A) f(x)=3x²+2x+1.