. Find the derivative of 𝑦 = 𝑥^ 2 + 4*𝑥 − 6 at (3,5) and plot the function and derivative curves. Use the legend option for labelling the curve.
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. Find the derivative of 𝑦 = 𝑥 ^2 + 4𝑥 − 6 at (3,5) and plot the function and derivative curves. Use the legend option for labelling the curve.
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Xiao Yangcong
2021 年 11 月 12 日
There is an error in this question. Please describe the problem again.
採用された回答
Xiao Yangcong
2021 年 11 月 12 日
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/798174/image.png)
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John D'Errico
2022 年 1 月 2 日
編集済み: John D'Errico
2022 年 1 月 2 日
Please don't do homework assignmets for students. It does not helpp them, only teaching them they can find the answer to their homework here, and we don't want that.
その他の回答 (1 件)
Image Analyst
2021 年 11 月 12 日
Hint -- use the plot() and legend() functions:
x = linspace(0, 6, 1000); % Define range for x as [0, 6] or whatever you want.
y = x .^ 2 + 4 * x − 6 % Your formula.
plot(
yDerivative = % Some other function of x. I'm sure you know Calculus.
plot( % Plot yDerivative vs. x. Use a different color.
legend(
% Find slope at x=3:
yDerivative = % same function but use 3 instead of x
% Optional (unasked for) stuff to make the plot pretty;
title('y = x .^ 2 + 4 * x − 6 and its derivative', 'FontSize', 18);
xlabel('x', 'FontSize', 18);
ylabel('y', 'FontSize', 18);'
grid on
Fill out the missing code. If you can't figure it out, read this:
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