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For the quadratic equation x^2+9x+18=0,...

For the quadratic equation `x^2+9x+18=0`, what will be the position of the vertex of the quadratic graph with reference to the origin (or intersection of both the axes)?

A

`9//2` units left, `9//4` units below

B

`9//2` units left, `9//4` units above

C

9 units right, 81 units below

D

9 units right, 9 units below

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The correct Answer is:
A
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