Quadratic - the degree is two.
It is a quadratic equation that has 2 solutions
It is linear in y, quadratic in x. Generally, that would be considered a quadratic.
It is the linear equation of a straight line.
No it is a linear one. X^2 = quadratic, x = linear. So if the equation doesn't have an x squared, then it is not quadratic.
Two equations: a linear one in y and a quadratic in x.
No. It's a quadratic equation, and it has two solutions.
No, It's a a quadratic equation because you have X squared.
No, y=x^2 + 2 is a quadratic equation. A linear equation is one in the form y=mx+b. A quadratic has a form y=ax^2+bx+c.
It is either a linear equation in a variable ww or a quadratic equation in a variable w, (with ww denoting w2).
no only equations with x2 and lower powers can be considered quadratic. those with x3 cannot be considered quadratic, just as x2 cannot be considered linear
Neither. It is a family of hyperbolae.
X equals 0.5at squared is a quadratic equation. It describes a parabola. Y equals mx plus b is a linear equation. It describes a line. You cannot describe a parabola with a linear equation.