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Formula
Find the maximum and minimum of the quadratic function
Calculate the differentiation
Graph
$y = x ^ { 2 } - 1$
$x$Intercept
$\left ( 1 , 0 \right )$, $\left ( - 1 , 0 \right )$
$y$Intercept
$\left ( 0 , - 1 \right )$
Minimum
$\left ( 0 , - 1 \right )$
Standard form
$y = x ^ { 2 } - 1$
$y = x ^{ 2 } -1$
$- 1$
Find the maximum and minimum of the quadratic function
$\color{#FF6800}{ y } = \color{#FF6800}{ x } ^ { \color{#FF6800}{ 2 } } \color{#FF6800}{ - } \color{#FF6800}{ 1 }$
 As $a \gt 0$ is, the minimum value is $- 1$ if $x = 0$
$\color{#FF6800}{ - } \color{#FF6800}{ 1 }$
$\dfrac {d } {d x } {\left( y \right)} = 2 x$
Calculate the differentiation of the logarithmic function
$\dfrac {d } {d \color{#FF6800}{ x } } {\left( \color{#FF6800}{ x } ^ { \color{#FF6800}{ 2 } } \color{#FF6800}{ - } \color{#FF6800}{ 1 } \right)}$
 Calculate the differentiation 
$\color{#FF6800}{ 2 } \color{#FF6800}{ x }$
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