Mathematics

• 1. Quadratic equation means "quadratus" in Latin meaning "square" and the maximum power is 2.
  2. Roots of equations:the 2 values of x which are obtained by solving the quadratic equation and also called zeros f the equation.
  3. Quadratic formula is ax²+ bx+c =0.
  4. Nature of roots usually represented by the symbols alpha (a) and beta.
• The discriminant D is calculated as follows:D=b²-4ac
• If D is positive, then there are two real roots. If D is zero, then there is one root or repeated root. If D is negative, then there are no real roots but complex conjugate roots.
• A quadratic function is a polynomial function with an exponent of 2 on its variable term. The general form of a quadratic function is y=ax² + bx + c where a≠0.
• A quadratic function can be written in standard form y=ax² + bx + c where a≠0.