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OpenStudy (anonymous):
Identify the vertex, focus, and directrix of the function. y=2x^2+12x+15 I've tried solving this multiple times and I have the vertex correct, but for some reason I can't get the focus and directrix. The equation I got was: y+3=2(x+3)^2.
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ganeshie8 (ganeshie8):
so it opens us
ganeshie8 (ganeshie8):
|dw:1370839056438:dw|
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