You can put this solution on YOUR website! If it is 2x^2 +4x-6 (not clear, so I will use that)
the vertex x-value is -b/2a, where b=4 and a=2
-4/4=-1 is x
substitute in and f(-1)=2-4-6=-8
(-1,-8)
You can put this solution on YOUR website! What is the vertex of 2x^2+4-6
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Depends.
2x^2+4-6
2x^2 - 2 = ??
2x^2 - 2 = 0 ?
2x^2 - 2 = -45 ?
2x^2 - 2 = 213 ?
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Wake up.