二次函数是高中阶段的重点内容,也是高中数学的难点,二次函数与一元二次不等式、一元二次方程有着密切的联系,解此类题中含有丰富的数学思想和方法,同学们难以掌握,特别在解决含有参数的二次函数问题时,更感到无所适从,下面我就有关二次函数问题介绍几种解题方法. Quadratic function is the focus of high school stage, high school mathematics is also difficult, quadratic function and quadratic inequality, quadratic equation is closely linked, solution of such questions is rich in mathematical ideas and methods, students are difficult Master, especially in solving the problem of quadratic function containing parameters, feel more confused, here I will introduce several solutions to quadratic function problems.