Mathematics, 23.10.2020 18:50, rebeccacruzz2017
Use the inverse matrix method to write the equation of the quadratic y=ax^2 + bx+ c that contains the points of (4,8),(0,12), and (7,-16)
Answers: 3
![\left[\begin{array}{ccc}16&4&1\\0&0&1\\49&7&1\end{array}\right]\cdot\left[\begin{array}{c}a\\b\\c\end{array}\right]=\left[\begin{array}{c}8\\12\\-16\end{array}\right]](/tpl/images/0835/8262/8bbd4.png)
![\left[\begin{array}{ccc}-\dfrac{1}{12}&\dfrac{1}{28}&\dfrac{1}{21}\\\\\dfrac{7}{12}&-\dfrac{11}{28}&-\dfrac{4}{21}\\\\0&1&0\end{array}\right]\cdot\left[\begin{array}{c}8\\12\\-16\end{array}\right]=\left[\begin{array}{c}-1\\3\\12\end{array}\right]](/tpl/images/0835/8262/c9a43.png)
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Use the inverse matrix method to write the equation of the quadratic y=ax^2 + bx+ c that contains th...
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