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Editor
 Sep 18, 2022
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The equation of the parabola with vertex (0,0) and focus (0,-4) is:
Difficulty: Easy
A: 
$y^{2}=-16x$
B: 
$x^{2}=-16y$
C: 
$y^{2}=-8x$
D: 
$y^{2}=-1/2x$
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NETNUST Entry TestMathematicsConic Sections