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Calculus I (MAT 145) Dr. Day Friday January 25, 2019

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1 Calculus I (MAT 145) Dr. Day Friday January 25, 2019
Approachment  Limits! Techniques for Determining the Value of a Limit Numerical Approximation: Same process we used last week Graphical Approximation: Visual determination Algebraic Representation: Determining an exact value! Quiz #2/3 today! Friday, Feb 1: Test #1 in STV 346 Friday, January 25, 2019 MAT 145

2 Friday, January 25, 2019 MAT 145

3 the function exists at a.
When limit exists If and , then If the left-hand limit exists and the right-hand limit exists and they are the same value, then the overall (two-sided) limit exists. Limits can exist whether or not the function exists at a. And, if the function does exist, but is not the same value as the limit at a (i.e., f(a)≠L), that’s okay, and, in fact, that’s how we know that a function is discontinuous at x=a (stay tuned: Section 2.6). Friday, January 25, 2019 MAT 145

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6 Vertical Asymptotes Friday, January 25, 2019 MAT 145

7 Limits and Vertical Asymptotes
Use limit statements to describe the vertical asymptotes. Friday, January 25, 2019 MAT 145

8 LIMIT LAWS! Suppose that c is a constant and the limits and exist.
Friday, January 25, 2019 MAT 145

9 MORE LIMIT LAWS! Friday, January 25, 2019 MAT 145

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12 of the curve y = f(x) if either:
The line y = L is called a horizontal asymptote of the curve y = f(x) if either: Friday, January 25, 2019 MAT 145

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17 by finding its intercepts and its limits as and as .
Sketch the graph of by finding its intercepts and its limits as and as . Friday, January 25, 2019 MAT 145


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