You are making a poster to support your friend for homecoming. Your original photo is 4 inches by 6 inches. You want the photo o
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Check the picture below, so the parabola looks more or less like that.
now, the vertex is half-way between the focus point and the directrix, so that puts it where you see it in the picture, and the horizontal parabola is opening to the left-hand-side, meaning that the distance "P" is negative.
