Question

discriminant of a quadratic equation X square + bx + c = 0 is given by?

Answer 1

If the discriminant of a quadraticfunction is equal to zero, that function has exactly one real root and crosses the x-axis at a single point. To see this, we set b2 −4ac = 0 in the quadratic formula to get, Notice that is the x-coordinate of the vertex of a parabola.