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OpenStudy (anonymous):
what is the vertex form for:y=-2x^2+12x-18 ?
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OpenStudy (anonymous):
y = -2(x^2 - 6x) - 18 y = -2(x^2 - 6x + 9) - 18 + 18 y = -2(x - 3)^2 vertex at (3, 0) is a maximum with y-axis as the axis of symmetry.
OpenStudy (anonymous):
The "+ 0" is supposed to be left out and is "understood".
OpenStudy (anonymous):
Sorry, x = 3 is axis of symmetry. All else holds.
OpenStudy (anonymous):
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