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Mathematics 12 Online
OpenStudy (anonymous):

Sketch the parabola. Complete the square when necessary. Plot the vertex and 4 other exact points, the focus, and directrix. x^2=-4y

OpenStudy (tkhunny):

First Glance: Vertex (0,0) -- Don't EVEN hesitate! Now try x = 1 and x = 2 -- You'll be ALMOST done!

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