Mathematics, 22.06.2019 14:30 leahpartaka03
For what values of a, values of the function y=x2+(a−2)x+0.25 are nonnegative?
Answers: 3
![a\in (-\infty,1]\cup [3,\infty).](/tpl/images/0004/4068/db426.png)
This function represents the parabola with branches that go in positive y-direction (because the leading coefficient is 1>0).
![(a-1)(a-3)\ge 0,\\ \\a\in (-\infty,1]\cup [3,\infty).](/tpl/images/0004/4068/bd2bc.png)
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For what values of a, values of the function y=x2+(a−2)x+0.25 are nonnegative?...
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