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For more information, please see full course syllabus of College Calculus: Level I
For more information, please see full course syllabus of College Calculus: Level I
College Calculus: Level I Curve Sketching
Lecture Description
In this video we are going to take a look how to use a lot of information about function to draw a rough sketch of that function. In our examples we are going to collect a following information about function: domain and the range of a function, x and y intercepts, symmetry properties (is it: odd, even, neither odd nor even, periodic), asymptotes (vertical, horizontal, slant), critical points (f’=0 or f’ undefined), increasing/decreasing intervals (f’>0, f’<0), inflection points (f’’=0 and f’’ changes sign), concave up/down intervals (f’’>0, f’’<0), local maxima and minima (1st Derivative Test, 2nd Derivative Test). We are going to see how all these properties interact to create a shape of a graph.
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1 answer
Last reply by: alex Wytaske
Sun May 29, 2011 2:27 PM
Post by alex Wytaske on May 29, 2011
In example 4 around 5 minutes there is another mistake. When evaluating f(1) she found the answer to be 17. This is incorrect. She added 50 instead of 40 like the equation calls for. These are prerecorded videos that should be reviewed prior to posting them. Having simple mistakes like this is frustrating. I am here to learn but simple mistakes like the ones hare reduce this sites legitimacy and my confidence in the instructors.
1 answer
Last reply by: Andrew Mu
Fri Jan 17, 2014 9:45 AM
Post by Romin Abdolahzadi on December 3, 2010
At around 14:40 professor Switkes says that she will also look at the critical value 0 on the f' sign chart because the 'second derivative is undefined there' but she really meant that the first derivative is undefined there: f'(x)= 1 - 1/x^2 undefined at x=0 due to division by zero.
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Post by Corey Parada on November 11, 2009
the y intercept is incorrect. She did not copy the function down correctly. The numerator is supposed to be x-4. not x-1