Find the Horizontal Tangent Line y=x^2
Problem
Solution
Identify the condition for a horizontal tangent line, which occurs when the derivative of the function is equal to zero.
Differentiate the function
y=x2 with respect tox using the power rule.
Set the derivative equal to zero to find the
x coordinate of the point of tangency.
Solve for
x by dividing both sides by2
Substitute the
x value back into the original equation to find the correspondingy coordinate.
Determine the equation of the horizontal line, which is in the form
y=c wherec is they coordinate found.
Final Answer
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