Find the point \((x,y)\) at which the graph of \(y = 4x^2 + 4x - 2\) has a horizontal tangent line. The function \(y = 4x^2 + 4x - 2\) has a horizontal tangent line at \(\boxed{\text{ }}\). (Type an ordered pair. Simplify your answer.)
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Step 1: The slope of the tangent line is given by the derivative of the function. Show more…
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