What kind of function is the form $f(x)=ax^2+bx+ca=0$ ?

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Answer 1 · 2018-05-28T17:30:12

$f(x)=ax^2+bx+ca=0, a!=0$ is a quadratic function; it describes a parabola on the x-y plane if $y = f(x)$

What kind of function is the form f(x)=ax^2+bx+ca=0f(x)=ax^2+bx+ca=0?