定点定值问题是解析几何中常见的一类题型,在近几年的高考试题中频繁出现,原因在于它往往与其他章节重要数学知识内容结合在一起,能够考查学生的函数思想、方程思想,以及分类讨论思想的应用,并同时考查了代数运算能力、推理论证能力和抽象概括能力,体现了较强的综合性,因而学生往往缺乏解题策略,而导 Fixed point fixed value problem is a common type of analytical geometry in the college entrance examination papers in recent years, frequent occurrences, because it is often associated with other chapters of important mathematical content combined to examine the student’s functional thinking, equation thinking , As well as the application of categorization and discussion, and at the same time examined algebraic computing ability, reasoning and argumentation ability and abstraction ability, reflecting a strong comprehensive, so students often lack of problem-solving strategies, and guide