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Welcome to The Introduction to CALCULUS! By the way, this is our last topic! 1. Take out your HW #1 and HW #2 2. Do Warm-Up on Whiteboard!!! o HW #3: p 903 #7- 33 (every other odd), p 909 #13-41 every other odd, #53 Agenda 1. Go over HW 2. Limits Algebraically 1. Limt MATHO 2. Closure Learning Objective #1 By the end of this period you will be able to: ① Calculate limits of polynomial and rational functions algebraically Review HW 1. Piece-wise 2. Limit Worksheet Limits Take out your composition notebook and title it: Limits- Algebraically Limit Worksheet o Work on the worksheet 15.1: Limits Limit of a Continuous Function o f(x) is continuous at a if and only if o Examples: polynomials, sinx, cosx, and ax , and 15.1: Limits Table- Talk: o In Example 1(b) where is the graph continuous? Where is it discontinuous? Example 2 Whiteboards! Whiteboards! Evaluate: This is not continuous at x=1 because it becomes 0/0. 15.1: Limits Limit of a Discontinuous Function o When it is not continuous ( when you get 0/0) you need to try to decompose the function into simpler ones by factoring. 15.1: Limits When computing the limit, we are only interested in x-values close to 1. What happens when x=1 is irrelevant, so we can replace f(x) with the simpler expression (x+1). Therefore, the limit is 2 because it gets closer and closer to 2. 15.1: Limits Figure out the Limit… https://www.youtube.com/watch/?v=oDAKKuBtDo Whiteboards! Limit MATHO On your card, write down the following answers ANYWHERE! • -1/9 2 6 4 9/2 6 -4 11 11/2 -3 • DNE ( not defined from left) • 3/5 • 2 • -3 • -1 • -5 • ½ • DNE • • • • • 4/3 -8 21 9 -11 Limit MATHO 1. I am going to pull a question out of the bin and you are going to answer it in your composition notebook. 2. If you get the answer, cross it out on your MATHO sheet 3. First person to get 5 in a row across, down, or diagonal WINS! I will give you piece of chocolate! 4. Questions? Closure Answer the following questions in your groups: ① What is a limit? ② How do you know if a limit is continuous or discontinuous? ③ If a limit is discontinuous what do you need to do to solve it algebraically? Limit Chalk! The weather is SO NICE so let’s go outside!! Period 3 already drew beautiful graphs for us with limit questions. You and your table group are going to go outside and answer the questions. Each student needs to be working! Questions?