What is the axis of symmetry and vertex for the graph $y= -7x^2$ ?

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Answer 1 · 2016-03-03T14:39:01

Axis of symmetry of this parabola is -ve y-axis. Vertex is (0, 0).

$x^2=-1/7y = -4/28y$ .
This parabola has focus at $(0, -1/28)$ .
The directrix is along y = $1/28$

What is the axis of symmetry and vertex for the graph y= -7x^2y= -7x^2?