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Equation of tangent (slope form).

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Equation of tangent (slope form).

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y = mx + a/m

Point of contact \(\frac{a}{m^2},\frac{2a}{m}\)

• Equation of tangent to the parabola (y – k)2 = 4a (x – h) is

y – k = m(x – h) + a/m

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