How To Find The Equation of a Horizontal Tangent Line and Normal Line

This calculus video tutorial shows you how to find and write the equation of the horizontal tangent line and normal line and point slope form and slope intercept form. It also shows you how to find the derivative and use it to calculate the slope of tangent line. This video contains plenty of examples and practice problems.
Derivatives - Fast Review:
• Calculus 1 - Derivatives
Equation of the Tangent Line:
• How To Find The Equati...
Derivatives - Horizontal Tangent Line:
• How to Find The Point ...
The Equation of The Normal Line:
• How To Find The Equati...
The Equation of The Secant Line:
• How To Find The Equati...
_________________________________
Average and Instantaneous Velocity:
• Average Velocity and I...
Instantaneous Rate of Change:
• Instantaneous Rate of ...
Derivatives of Rational Functions:
• Derivatives of Rationa...
Derivatives of Radical Functions:
• Derivatives of Radical...
Derivatives of Fractions:
• How To Find The Deriva...
________________________________
Derivatives - Higher Order:
• Higher Order Derivatives
Simplifying Derivatives:
• Simplifying Derivatives
Derivatives - The Product Rule:
• Product Rule For Deriv...
Derivatives - The Quotient Rule:
• Quotient Rule For Deri...
Derivatives - The Chain Rule:
• Chain Rule For Finding...
_______________________________________
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www.video-tuto...
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[@TheOrganicChemistryTutor]

Final Exams and Video Playlists: www.video-tutor.net/

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[@TheOrganicChemistryTutor]

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[@benjaminmartin7797]

What if you have more than one horizontal tangent line? In such as: x(sqrt{4-x^2 } where there's two. What is the formula to find them since f'(x) = 0 doesn't work in this case...

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[@belsargento2614]

Do we need to flip the tangent line of 4/3 to have a normal line of negative 3/4 or it will remain to a fraction form and have a negative sign (negative 4/3)?

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[@kennethjamero4075]

Sir.how about finding the equation of a normal line when the slope of the tangent is equal to zero

[@theecon867]

if the slope is equal to zero that would mean the y is constant, the normal line would then have a slope of zero as well.

[@dresaedmonds4647]

Thank u

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[@olivier2505]

Solve this horizontal tangent to y=2x^3-24x+4

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The last example shoul be wrong

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