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do you know what a focus and directrix are for a quadratic?
oh these are fun!!!!!!!!!
if you know how a quadratic is defined in terms of it's focus and directrix, you'd know that the vertex is midway between the two
your points are wrong
your directrix is what?
and what is that?
sure, but that's not the point you want...|dw:1411404604882:dw|where is the focus?
so plot the point (the focus) and draw where the parabola goes
just roughly, no need to be exact... yet
nope
|dw:1411404962400:dw|
you don't understand what a focus or directrix is, nor how they relate to the parabola.
if you did, you wouldn't have any issues drawing the tthing or finding it's vertex. where is the vertex?
i'm not rying to be mean but you need to understand the definition of the terms and how they relate to the object in question. drawing things out is a great way to visualize what's going on and see how things are related
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