The entire graph of y=x^(2)+kx-x+9 is st...

The entire graph of `y=x^(2)+kx-x+9` is strictly above the X-axis if and only if

A

` K lt 7`

B

`-5 lt K lt 7`

C

`K gt - 5`

D

`K gt 7`

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The correct Answer is:

B

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