Alvesta is a municipality in southern Sweden, in the county of Kronoberg. The municipality covers an area of 974.8 km². Of the total population of 18916, 9579 are male, and 9337 are female. The population density of the community is 19 inhabitants per km².
... discriminant is zero, then there is a repeated solution x, and this solution is real. (Geometrically, this means that the parabola described by the quadratic equation ...