Which equation represents a quadratic function?
Answer Choices:
A.f(x)={−3, ifx > 25, ifx ≤2
Bf(x)=(x+1)2−2
Cf(x)=||x−9||
Df(x)=4(x+2)
Answer Choices:
A.f(x)={−3, ifx > 25, ifx ≤2
Bf(x)=(x+1)2−2
Cf(x)=||x−9||
Df(x)=4(x+2)