Simplify 63 ÷ 4 + 2 x 9(32 x 8 – 17 x 4).
1 answer:
You might be interested in
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.
