How to Reduce Puffiness in the Face. Whether the cause is allergies, too many salty snacks or a jam-packed schedule, waking up to a puffy face is enough to put a damper on your day. While severe or unrelenting swelling warrants a visit to your doctor, itâs easy to treat a simple case of facial puffiness at home.
A Reference Point is something you use to determine the position of an object, but the reference point has to be something that doesn't move at all. For Example: A Tree. A <b>Reference Point</b> is something you use to determine the position of an object, but the reference point has to be something that doesn't move at all. <br /> <br /> <b>For Example: A Tree</b>.
Definition: The locus of all points that are equidistant from a given point (focus). and a given line (directrix). Try this Drag the point P. It will move through all the points equidistant from the focus point and the directrix line. Recall that the definition of locus is the set points that meet some given conditions. In this definition of a parabola, it is the shape created by the points that are the same distance from a given point (call the focus) and a given line (called the directrix)*.