Algebra and Trigonometry 2e

Key Equations

Key Equations

 general form of a quadratic function $f(x)=a x 2 +bx+c f(x)=a x 2 +bx+c$ standard form of a quadratic function $f(x)=a (x−h) 2 +k f(x)=a (x−h) 2 +k$
 general form of a polynomial function $f(x)= a n x n +...+ a 2 x 2 + a 1 x+ a 0 f(x)= a n x n +...+ a 2 x 2 + a 1 x+ a 0$
 Division Algorithm
 Rational Function
 Direct variation $y=k x n ,k y=k x n ,k$ is a nonzero constant. Inverse variation $y= k x n ,k y= k x n ,k$ is a nonzero constant.
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