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What real value of t produces the smallest value of the quadratic t^2 -9t - 36 + t^2 - 5t + 14?

 Jun 23, 2022
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t^2 -9t - 36 + t^2 - 5t + 14        simplify  as

 

2t^2  - 14t  - 22

 

The t that produces a min  is the  x coordinate of the  vertex of this parabola given by

 

- (-14)  / (2 * 2)  =   14/4  =  7/2  =   3.5

 

 

cool cool cool

 Jun 23, 2022

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