Find the equations of normal to. y = x 3 - 3x. that is parallel to 2x + 18y - 9 = 0. Solution : Slope of tangent drawn to the circle. dy/dx = 3x 2 - 3(1) = 3x 2 - 3. Slope of the normal line to the curve =
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Lonnie Davis
Find the Equation of a Line Tangent to a Curve At a Given Point
To determine the equation of a tangent to a curve: Find the derivative using the rules of differentiation. Substitute the x -coordinate of the given point into the derivative to calculate