It depends on the domain of y. If that is restricted to non-negative values, then the answer is yes. But if y is allowed to be negative, then the answer is no because then there are two values of y for each non-zero value of x.
no
If a graph is a function, it will always have y=... or x=... (or anoher letter equals an equation) for example y= 3x-12 is a function
No, It's a a quadratic equation because you have X squared.
It is a quadratic equation in X.
no, because xx=x squared, and x squared is not linear
5
no
If a graph is a function, it will always have y=... or x=... (or anoher letter equals an equation) for example y= 3x-12 is a function
No, It's a a quadratic equation because you have X squared.
Y = x squared -4x plus 3 is an equation of a function. It is neither called a domain nor a range.
It is a quadratic equation in X.
no, because xx=x squared, and x squared is not linear
It is the Cartesian equation of an ellipse.
Yes it is. The thing that makes it a quadratic equation is that "x squared" in there.
Relativity.
It is the equation of a parabola.
It is a quadratic equation in the one variable.