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What code what should I input in the slope, y tangent and y normal? I am currently stuck and tried some codes but it still has an error as seen in the second photo..

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Neil Allen
Neil Allen 2022-10-2
评论： Walter Roberson 2022-10-3
(~Second Photo~ Ps. I got some answers and values but it is still wrong.)

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回答（1 个）

Walter Roberson
Walter Roberson 2022-10-2
https://www.mathworks.com/matlabcentral/answers/1816015-can-someone-help-how-to-calculate-the-slope-tangent-line-and-normal-line-i-m-lost-on-how-i-should#answer_1065115
is tangent line is a line, and needs to be expressed in the form y = m*x+b for some numeric m, some numeric b, and symbolic x
You already calculated m and I pointed out earlier how to calculate b.
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Neil Allen
Neil Allen 2022-10-3
okay so now I got the answers and have the right form of graph but the I don't what is the error that it says here.
here is how it is coded and I am not authorize to change the highlighted codes.
Walter Roberson
Walter Roberson 2022-10-3
ynormal should also be of the form y=m*x+b, but with a slope that is calculated to be perpendicular to ytangent.
You should not be hardcoding m or the intercept for ytangent or the slope for ynormal.

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