在高中阶段,一元二次函数一直是函数部分教学的重点和难点,在教学中对这部分内容相当重视,因此,学生对一元二次函数的图象及性质比较熟悉.随着导数的引入,由于一元三次函数的导数是一元二次函数,因此,在综合性考试中,常见一元三次函数和一元二次函数综合考查的题目.学生应掌握一元三次函数的图象和性质.下面,讨论一下一元三次函数的图象和性质. In the high school stage, the one-dimensional quadratic function has always been the key and difficult part of the teaching of the function. In the teaching, this part of the content is very important. Therefore, students are familiar with the quadratic function of the image and the nature of the quadratic function. With the introduction of the derivative, Since the derivative of the univariate cubic function is a one-dimensional quadratic function, in the comprehensive examination, the common one-third-order function and the one-way quadratic function are commonly examined. Students should grasp the image and nature of the one-dimensional cubic function. Below, discuss The image and nature of the unary cubic function.