How many solutions are possible for a system of equations containing exactly one linear and one quadratic equation?

A system of equations containing exactly one linear equation and one quadratic equation can have up to two solutions, depending on their intersection. If the linear equation intersects the quadratic curve at two points, there will be two solutions. If they intersect at one point (tangent) or not at all, there will be one or zero solutions, respectively. Thus, the possible number of solutions is 0, 1, or 2.