❤️Math Follow Me and Practice everyday 💯
🤔️跟我一起做💯
🌹Topic today：Definition of a Function函数的定义
🔑Key words
▶️domain定义域，codomain陪域，range值域，rule规则，image像，set集合
▶️defined by a formula用公式定义，make sense有意义，real numbers实数
▶️positive正，negative负，even integers偶数，odd integers奇数
▶️assume假设，evaluate求值
❤️MathFollowMeandPracticeeveryday💯🤔️跟我一起做💯🌹Topictoday：Defini 
❤️MathFollowMeandPracticeeveryday💯🤔️跟我一起做💯🌹Topictoday：Defini ❤️MathFollowMeandPracticeeveryday💯🤔️跟我一起做💯🌹Topictoday：Defini ❤️MathFollowMeandPracticeeveryday💯🤔️跟我一起做💯🌹Topictoday：Defini ❤️MathFollowMeandPracticeeveryday💯🤔️跟我一起做💯🌹Topictoday：Defini ❤️MathFollowMeandPracticeeveryday💯🤔️跟我一起做💯🌹Topictoday：Defini 
