If the graph of y=ax^(2)+bx+c lies compl...

If the graph of `y=ax^(2)+bx+c` lies completely above the x-axis, then

A

`b^(2) - 4ac gt 0, a gt 0`

B

`b^(2) - 4ac gt 0, a lt 0`

C

`b^(2) - 4ac lt 0, a gt 0`

D

`b^(2) - 4ac lt 0, a lt 0`

लिखित उत्तर

Verified by Experts

The correct Answer is:

C

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