Tangent lines without derivatives for quadratic and cubic equations

• Autores: William J. Carrol
• Localización: Mathematics teacher, ISSN-e 2330-0582, ISSN 0025-5769, Vol. 102, Nº 7, 2009, págs. 516-519
• Idioma: inglés
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• Resumen

  • The equation of the line tangent to the parabola at its y-intercept is extended to give a convenient method of finding tangent lines at any point on the graph of a quadratic or a cubic equation