# Recitation 913

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Recitation 9/13/23 MA 131 WebAssign Due Dates 1. Difference Equations (I) - 9/21 2. Mini-homework: Difference Equations - 9/21 3. Difference Equations (II) - 9/21 4. Derivatives and tangent lines - 9/21 5. Limits, Continuity and Differentiability - 9/21 6. Derivatives (II) - 9/21 Recommended Due Dates 1. Difference Equations (I) - ASAP 2. Mini-homework: Difference Equations - ASAP 3. Difference Equations (II) - ASAP 4. Derivatives and tangent lines - 9/15 5. Limits, Continuity and Differentiability - 9/17 (finishing content tomorrow) 6. Derivatives (II) - 9/18 (finishing content tomorrow) Attendance Questions 1. What questions do you have about the upcoming exam? (It's next Thursday!) This can be about the structure, any content-related questions, etc. 2. What is your favorite candy? Today's Goal: Solidify our understanding of limits and the derivative 1
Problem 1: Evaluate the limit, if it exists. 1. lim x 5 (2 + 2 x 3 ) 2. lim x 6 | x 6 | 3. lim x 3 1 x 3 4. lim x 4 p 4 x 2 + 5 5. lim x →∞ 7 x 6. lim x →∞ 9 x 2
Problem 2: Consider the graph of the function f ( x ) : At which x-values does the limit of f ( x ) exist? At which x-values is the function differentiable? 3