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Mathematics 19 Online
OpenStudy (anonymous):

find the vertex focus and directrix and the correct graph of the equation 12(x+5)=(y-8)^2

Directrix (directrix):

Vertex (-5, 8); Focus (-2, 8), and Directrix equation x = -8 Parabola is horizontal, opens to the right. http://www.wolframalpha.com/input/?i=12%28x%2B5%29%3D%28y-8%29%5E2

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